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Perth notices
View navigational warnings, event notices and Temporary Notices To Mariners for the Perth region.
Warning: Hillary's Boat Harbour Port Lateral Beacon Unlit
Mariners are advised that on approach from the West 360m out from Hillary's Boat Harbour the Port lateral beacon is unlit.
Mariners are advised to navigate with caution in the area from dusk till dawn.
Mariners are advised to navigate with caution in the area from dusk till dawn.
Chart reference: WA957 - Trigg
Location: -31:49.4671'S 115:43.6765'E
Start date:
18/11/2024
Issued:
18/11/2024
Notice number: 6237
Warning: Longreach Bay Rear Lead Unlit
Mariners are advised that the blue rear lead light is unlit marking the safe passage at night into Longreach Bay, Rottnest.
Mariners are advised to navigate with caution transiting in and out of Longreach Bay from dusk till dawn.
Mariners are advised to navigate with caution transiting in and out of Longreach Bay from dusk till dawn.
Chart reference: WA412 - Rottnest Island
Location: -31:59.3125'S 115:31.5502'E
Start date:
18/11/2024
Issued:
18/11/2024
Notice number: 6236
Advice: Rottnest Ferries - Impeded by Water Depth within Thomson Bay Entrance
Mariners are advised that due to available water depth, Rottnest Express vessel’s are constrained by their draft within the entrance channel to Thompson Bay and on approach to the landing jetty. On occasion, these vessels can only navigate within a reduced area of the channel, may transit against the flow of traffic, and are severely restricted in the ability to deviate from their course.
Mariners are advised to keep a lookout before entering the channel and are not to impede to passage of all Rottnest Ferries.
Mariners are advised to keep a lookout before entering the channel and are not to impede to passage of all Rottnest Ferries.
Chart reference: WA412 - Rottnest Island
Location: -31: 59.7052'S 115: 32.8746'E
Start date:
15/11/2024
Issued:
15/11/2024
Notice number: 6234
Advice: Diving Surveys, Alkimos
Mariners are advised that Diving Surveys will be performed offshore from Alkimos Beach from 12th November 2024 to 24 November 2024.
Operations will be undertaken from a 12-metre aluminium monohull vessel ‘SIENNA’.
Surveying will take place approximately 1- 2nm offshore Alkimos Beach Lookout.
The international code flag “A” will be exhibited whilst diving operations are in progress.
Operators will monitor Marine VHF Channel 16.
Mariners are advised to give way to the survey vessel and maintain a minimum 100m safe distance from operations
Operations will be undertaken from a 12-metre aluminium monohull vessel ‘SIENNA’.
Surveying will take place approximately 1- 2nm offshore Alkimos Beach Lookout.
The international code flag “A” will be exhibited whilst diving operations are in progress.
Operators will monitor Marine VHF Channel 16.
Mariners are advised to give way to the survey vessel and maintain a minimum 100m safe distance from operations
Chart reference: WA1076 - Yanchep
Location: -31: 37.9530'S 115: 38.6116'E
Start date:
12/11/2024
End date:
24/11/2024
Issued:
12/11/2024
Notice number: 6231
Advice: Diving Inspections, Fremantle Fishing Boat Harbor
Mariners are advised that diving operations are scheduled to take place at Fremantle Fishing Boat Harbour on various jetties and piles from Thursday 7 November 2024 to Monday 25 November 2024.
Works will take place from work vessel ‘Jetwave Kiri’ Monday to Friday from 7:00am to 3:00pm.
Access to the pens and jetties will be maintained at all times.
The international code flag “A” will be exhibited whilst diving operations are in progress.
Operators will monitor marine VHF channel 16 during the above operations.
Mariners are advised to exercise caution when transiting through the harbour and to stay well clear of divers during these operations.
Works will take place from work vessel ‘Jetwave Kiri’ Monday to Friday from 7:00am to 3:00pm.
Access to the pens and jetties will be maintained at all times.
The international code flag “A” will be exhibited whilst diving operations are in progress.
Operators will monitor marine VHF channel 16 during the above operations.
Mariners are advised to exercise caution when transiting through the harbour and to stay well clear of divers during these operations.
Chart reference: WA001 - Ocean Reef to Cape Peron
Location: -32: 3.7144'S 115: 44.7074'E
Start date:
07/11/2024
End date:
25/11/2024
Issued:
06/11/2024
Notice number: 6227
Advice: Construction Works and Closures, Ocean Reef Marina, WA
Mariners are advised that construction works, and water closures are currently in place at the Ocean Reef Marina
These works form part of the Ocean Reef Marina Project.
The on-water stages comprise of the following works,
• Beach and edge wall works within the marina
• Demolition and construction of various boat ramps.
• Opening of all 8 new boat ramps
On water works will be in place until September 2025
The works area will be delineated by yellow buoys placed along the length of the silt curtain at 30m intervals. Flashing yellow lights visible to 1 nautical mile will be affixed to the buoys to alert mariners/users of the construction zone. Please refer below to a diagram of the works area.
These works will occur between 07:00 am and 07:00 pm Monday to Saturday.
Operators will monitor Marine Radio VHF Channel 16 during operating hours.
Access to the boat ramps will be maintained however not at full capacity.
I Graeme Meinema, delegate of the Chief Executive Officer, acting pursuant to section 66 of the Western Australian Marine Act 1982 hereby cancel notice 5792 published on the 15 April 2024 and close the following area of water to all vessels from 29 October 2024.
Closure area:
Area 1
All waters of the Ocean Reef Boat Harbour bounded by the shore and line commencing at -31° 45.505' S, 115° 43.516' E thence to -31° 45.461' S, 115° 43.426' E. This corresponds to an area of waters that have been enclosed by a silt curtain (bunding).
Area 2
All waters of the Ocean Reef Boat Harbour bounded by the shore and line commencing at -31° 45.617' S, 115° 43.576' E thence to -31° 45.540' S, 115° 43.541' E. This corresponds to an area of waters that have been enclosed by a silt curtain (bunding).
Area 3
All waters in the vicinity of the boat ramp jetties that are encapsulated by silt curtains (bunding).
Conditions of closure;
Bonafide vessels associated with the construction works and all Government vessels are exempt from the closure.
Mariners are advised to use caution when transiting the area and always keep well clear of the above operations when transiting to the boat ramps that remain open and note, all waters of the Ocean Reef Marina are closed to windsurfing, kitesurfing, and winging activities.
Swimming and kayaking are prohibited within the above works area.
This notice is in effect as of 29 October 2024
All coordinates based on GDA 2020
These works form part of the Ocean Reef Marina Project.
The on-water stages comprise of the following works,
• Beach and edge wall works within the marina
• Demolition and construction of various boat ramps.
• Opening of all 8 new boat ramps
On water works will be in place until September 2025
The works area will be delineated by yellow buoys placed along the length of the silt curtain at 30m intervals. Flashing yellow lights visible to 1 nautical mile will be affixed to the buoys to alert mariners/users of the construction zone. Please refer below to a diagram of the works area.
These works will occur between 07:00 am and 07:00 pm Monday to Saturday.
Operators will monitor Marine Radio VHF Channel 16 during operating hours.
Access to the boat ramps will be maintained however not at full capacity.
I Graeme Meinema, delegate of the Chief Executive Officer, acting pursuant to section 66 of the Western Australian Marine Act 1982 hereby cancel notice 5792 published on the 15 April 2024 and close the following area of water to all vessels from 29 October 2024.
Closure area:
Area 1
All waters of the Ocean Reef Boat Harbour bounded by the shore and line commencing at -31° 45.505' S, 115° 43.516' E thence to -31° 45.461' S, 115° 43.426' E. This corresponds to an area of waters that have been enclosed by a silt curtain (bunding).
Area 2
All waters of the Ocean Reef Boat Harbour bounded by the shore and line commencing at -31° 45.617' S, 115° 43.576' E thence to -31° 45.540' S, 115° 43.541' E. This corresponds to an area of waters that have been enclosed by a silt curtain (bunding).
Area 3
All waters in the vicinity of the boat ramp jetties that are encapsulated by silt curtains (bunding).
Conditions of closure;
Bonafide vessels associated with the construction works and all Government vessels are exempt from the closure.
Mariners are advised to use caution when transiting the area and always keep well clear of the above operations when transiting to the boat ramps that remain open and note, all waters of the Ocean Reef Marina are closed to windsurfing, kitesurfing, and winging activities.
Swimming and kayaking are prohibited within the above works area.
This notice is in effect as of 29 October 2024
All coordinates based on GDA 2020
Chart reference: WA001 - Ocean Reef to Cape Peron
Location: -31: 45.5380'S 115: 43.4760'E
Start date:
29/10/2024
End date:
01/09/2025
Issued:
28/10/2024
Notice number: 6211
PDF download882 KbAdvice: Phase 2 of the Modular Engineered Reef Installation – C.Y. O’Connor Beach, North Coogee
Mariners are advised that phase 2 of the modular engineered reef is scheduled to be permanently installed approximately 100m offshore from North Coogee Dog Beach, north of Catherine Point, from Monday 28 October to Wednesday 18th December 2024.
These works will take place Monday to Friday from 7:00am to 6:00pm and will be carried out by spud barge “Longreach” (11.95m x 7.6m), and tug boat “Leah” (13.7m x 4.0m).
Geographical extent of reef:
32° 4.904' S, 115° 45.042' E extending south to 32° 4.956' S, 115° 45.031'E
The works area will be marked by special marker buoys which are yellow in colour, approximately 1.3m in height and equipped with yellow flashing lights. (Flash Rate: 1.0s ON/ 3.0s OFF)
Diving operations will also take place as part of these works. The International Code Flag ‘A’ will be exhibited whilst diving operations are underway.
All vessels taking part in these works will exhibit shapes and lights in accordance with the Prevention of Collisions at Sea Regulations 1983 at all times.
Operators will monitor marine VHF channel 16 during operating hours.
Mariners are advised to exercise caution when transiting the area and keep well clear of the above operations.
These works will take place Monday to Friday from 7:00am to 6:00pm and will be carried out by spud barge “Longreach” (11.95m x 7.6m), and tug boat “Leah” (13.7m x 4.0m).
Geographical extent of reef:
32° 4.904' S, 115° 45.042' E extending south to 32° 4.956' S, 115° 45.031'E
The works area will be marked by special marker buoys which are yellow in colour, approximately 1.3m in height and equipped with yellow flashing lights. (Flash Rate: 1.0s ON/ 3.0s OFF)
Diving operations will also take place as part of these works. The International Code Flag ‘A’ will be exhibited whilst diving operations are underway.
All vessels taking part in these works will exhibit shapes and lights in accordance with the Prevention of Collisions at Sea Regulations 1983 at all times.
Operators will monitor marine VHF channel 16 during operating hours.
Mariners are advised to exercise caution when transiting the area and keep well clear of the above operations.
Chart reference: WA001 - Ocean Reef to Cape Peron
Location: -32:4.9322'S 115:45.0520'E
Start date:
28/10/2024
End date:
18/12/2024
Issued:
24/10/2024
Notice number: 6209
Warning: Semi-Submerged Yacht - Mangles Bay
Mariners are advised there is a semi-submerged Yacht located within the Mangles Bay Mooring area, Rockingham.
Please proceed with caution when transiting this area.
Please proceed with caution when transiting this area.
Chart reference: WA001 - Ocean Reef to Cape Peron
Location: -32: 16.21980'S 115: 42.34320'E
Start date:
27/09/2024
Issued:
27/09/2024
Notice number: 6191
Warning: Submerged Mooring Buoy - Mangles Bay
Mariners are advised that there is a submerged buoy located on the northwest side of the Mangles Bay mooring zone.
Mariners are advised to proceed with caution when transiting this area.
Mariners are advised to proceed with caution when transiting this area.
Chart reference: WA913 - Cape Peron to Dawesville
Location: -32: 16.096'S 115: 42.340'E
Start date:
16/09/2024
Issued:
16/09/2024
Notice number: 6180
Advice: Two Rocks Marina service wharf restrictions
Mariners are advised that the Northern service wharf has been closed to all vessels until further notice.
The Western wharf including access to fuel and boat lift operations remain open.
For further information please contact the Two Rocks Marina office on 1300 863 308.
Please refer to the PDF below for further information.
The Western wharf including access to fuel and boat lift operations remain open.
For further information please contact the Two Rocks Marina office on 1300 863 308.
Please refer to the PDF below for further information.
Chart reference: WA1071 - Two Rocks
Location: -31: 29.728'S 115: 34.911'E
Start date:
12/09/2024
Issued:
12/09/2024
Notice number: 6178
PDF download1325 KbWarning: Boat Ramp Closure – Bent Street Boat Ramp – Rockingham
Mariners are advised that a portion of the Bent Street Boat Ramp has been closed until further notice. This is due to rapid sand build-up of the Tern Bank Sand Bar this 2024 winter, and therefore the City of Rockingham has closed the western formal concrete boat ramp lane, including the beach launching area at the Bent Street Boat Ramp.
Mariners are advised to use the eastern formal concrete boat ramp lane, including the beach launching area with caution, keeping in mind the potential for shallow water depths at this boat ramp. The eastern formal concrete boat ramp lane associated with the jetty, and the informal eastern beach launching area can be used for both launching and retrieving of recreational vessels.
Mariners are advised to exercise caution and be aware of changing conditions.
All enquiries to the City of Rockingham – 08 9528 0333
Mariners are advised to use the eastern formal concrete boat ramp lane, including the beach launching area with caution, keeping in mind the potential for shallow water depths at this boat ramp. The eastern formal concrete boat ramp lane associated with the jetty, and the informal eastern beach launching area can be used for both launching and retrieving of recreational vessels.
Mariners are advised to exercise caution and be aware of changing conditions.
All enquiries to the City of Rockingham – 08 9528 0333
Chart reference: WA913 - Cape Peron to Dawesville
Location: -32: 18.42417'S 115: 43.16493'E
Start date:
23/08/2024
Issued:
23/08/2024
Notice number: 6161
Advice: Deployment Of 1x Directional Wave Buoy - Hillarys
Mariners advised that a Directional Wave Rider Buoy (DWRB) has been deployed approximately 4.6 NM WSW of Hillarys Marina at the following location;
-31: 50.8680 S 115: 38.7900 S
The Yellow DWRB is equipped with a flashing yellow light.
Flash Rate: Fl Y 2.5s
The small yellow wave buoy is connected to an orange surface float 10m apart. It's fitted with 45m poly rope which is moored to the seafloor with a clump weight and consists of one in-line float 5m above the seabed.
Mariners are advised to navigate with caution and keep well clear of monitoring device.
-31: 50.8680 S 115: 38.7900 S
The Yellow DWRB is equipped with a flashing yellow light.
Flash Rate: Fl Y 2.5s
The small yellow wave buoy is connected to an orange surface float 10m apart. It's fitted with 45m poly rope which is moored to the seafloor with a clump weight and consists of one in-line float 5m above the seabed.
Mariners are advised to navigate with caution and keep well clear of monitoring device.
Location: -31: 50.8680'S 115: 38.7900'E
Start date:
24/05/2024
End date:
01/03/2025
Issued:
24/05/2024
Notice number: 6068
Advice: Deployment of 3x AWACs – Fremantle Fishing Boat Harbour and vicinity
Mariners are advised that 3x AWACs (acoustic wave and current profiler) are scheduled to be deployed at Fremantle Fishing Boat Harbour (FFBH) and vicinity at the following locations:
32: 3.850S, 115: 43.366E (approximately 1 nautical mile west of FFBH)
32: 3.850S, 115: 44.465 (approximately 5m seaward of the FFBH inner traffic separation marker)
32: 3.610S, 115: 44.801E (Fremantle Sardine Jetty)
Provisional deployment: 01/04/2024
Provisional recovery: 01/04/2025
Each of the above AWACs will be mounted on a seabed aluminium box frame (800mm (L) x 800mm (W) x 500mm (H)
No vessel is to interfere with the above AWACs at any time.
Mariners are advised to navigate with caution when transiting the area and keep well clear of the above AWACs at all times.
32: 3.850S, 115: 43.366E (approximately 1 nautical mile west of FFBH)
32: 3.850S, 115: 44.465 (approximately 5m seaward of the FFBH inner traffic separation marker)
32: 3.610S, 115: 44.801E (Fremantle Sardine Jetty)
Provisional deployment: 01/04/2024
Provisional recovery: 01/04/2025
Each of the above AWACs will be mounted on a seabed aluminium box frame (800mm (L) x 800mm (W) x 500mm (H)
No vessel is to interfere with the above AWACs at any time.
Mariners are advised to navigate with caution when transiting the area and keep well clear of the above AWACs at all times.
Chart reference: WA001 - Ocean Reef to Cape Peron
Location: -32: 3.850'S 115: 44.465'E
Start date:
13/03/2024
End date:
01/04/2025
Issued:
13/03/2024
Notice number: 5994
Advice: Maintenance and Repair Works - Defence Cadet Jetty HMAS Leeuwin
Mariners are advised that maintenance and repair works on the Defence Cadet Jetty at HMAS Leeuwin will commence 1st Feb 2024 and is expected to be completed around late November 2024.
Works will take place Monday to Friday during daylight hours.
Personnel will be working from small work vessels with diving operations below the jetty. The international code Flag A will be exhibited during dive operations.
Lit - yellow special marker buoys will be installed to demarcate the work area and access to the jetty will be closed at all times.
Operators will monitor Marine VHF Channel 16 during working hours.
Mariners are advised to navigate with caution when transiting the area and to be wake-aware.
Works will take place Monday to Friday during daylight hours.
Personnel will be working from small work vessels with diving operations below the jetty. The international code Flag A will be exhibited during dive operations.
Lit - yellow special marker buoys will be installed to demarcate the work area and access to the jetty will be closed at all times.
Operators will monitor Marine VHF Channel 16 during working hours.
Mariners are advised to navigate with caution when transiting the area and to be wake-aware.
Chart reference: WA898 - Swan and Canning Rivers
Location: -32: 01.5638'S 115: 46.0891'E
Start date:
01/02/2024
End date:
02/12/2024
Issued:
17/01/2024
Notice number: 5959
Advice: Deployment of 3 x Directional Wave Buoy – Wanneroo Vicinity
Mariners are advised that three Directional Wave Buoy have been deployed in the below positions. 2 x are approximately 2km offshore from Quinns Beach vicinity and 1 x approximately 400m offshore from Yanchep Beach vicinity.
Location 1: 31° 39.6000'S, 115° 39.8760’E
Location 2: 31° 40.6260'S, 115° 40.2360’E
Location 3: 31° 33.2760'S, 115° 37.2960’E
The above lit directional wave buoys (Fl 2.5s) are predominantly yellow in colour with black panels with a surface height of approximately 150mm. The directional wave buoy will be attached to a lit yellow surface float (Fl 2.5s) approximately 20 metres from the wave buoy.
Provisional recovery date: The above directional wave buoy will be deployed as part of the as part of environmental monitoring of waves and temperatures by UWA and will be recovered around November 2026.
Location 1: 31° 39.6000'S, 115° 39.8760’E
Location 2: 31° 40.6260'S, 115° 40.2360’E
Location 3: 31° 33.2760'S, 115° 37.2960’E
The above lit directional wave buoys (Fl 2.5s) are predominantly yellow in colour with black panels with a surface height of approximately 150mm. The directional wave buoy will be attached to a lit yellow surface float (Fl 2.5s) approximately 20 metres from the wave buoy.
Provisional recovery date: The above directional wave buoy will be deployed as part of the as part of environmental monitoring of waves and temperatures by UWA and will be recovered around November 2026.
Chart reference: WA986 - Quinns Rocks
Location: -31: 39.6000'S 115: 39.8760'E
Start date:
01/11/2023
End date:
01/11/2026
Issued:
05/12/2023
Notice number: 5902
Advice: Deployment of Directional Wave Buoy – Offshore Cottesloe
A directional wave buoy (DWRB) has been deployed approximately 3.4 nautical miles offshore from Cottesloe, at the location below.
The DWRB is yellow in colour, approximately 700mm in diameter, and equipped with a 2m whip antenna and flashing yellow light.
Flash rate: Fl (5) Y 5s
Mariners are requested to maintain a minimum distance of 100 meters from the DWRB, including any associated fishing equipment at all times so as to not interfere with or damage the DWRB.
The DWRB is yellow in colour, approximately 700mm in diameter, and equipped with a 2m whip antenna and flashing yellow light.
Flash rate: Fl (5) Y 5s
Mariners are requested to maintain a minimum distance of 100 meters from the DWRB, including any associated fishing equipment at all times so as to not interfere with or damage the DWRB.
Chart reference: AUS112 - Approaches to Fremantle
Location: -31: 58.7840'S 115: 41.3780'E
Issued:
15/11/2023
Notice number: 5873
Warning: Sorrento Shark Buoy Damaged and Unlit
The Sorrento shark monitoring buoy, located approximately 500m south of Hillarys Boat Harbour, is damaged and unlit. It is reported to have broken in half and is also missing it's light. Mariners are advised to navigate with caution when transiting the area
Chart reference: WA957 - Trigg
Location: -31: 49.88780'S 115: 44.30820'E
Start date:
03/11/2023
Issued:
03/11/2023
Notice number: 5860
Advice: Deployment of Directional Wave Rider Buoy – Offshore Rottnest Island
A directional wave buoy (DWRB) has been deployed approximately 6 nautical miles southwest of Rottnest Island, at the location below. The DWRB is yellow in colour, approximately 700mm in diameter, and equipped with a 2m whip antenna and flashing yellow light.
Flash rate: Fl (5) Y 20s
Mariners are requested to maintain a minimum distance of 100 meters from the DWRB, including any associated fishing equipment at all times so as to not interfere with or damage the DWRB.
Flash rate: Fl (5) Y 20s
Mariners are requested to maintain a minimum distance of 100 meters from the DWRB, including any associated fishing equipment at all times so as to not interfere with or damage the DWRB.
Location: -32: 5.9180'S 115: 24.4910'E
Issued:
26/09/2023
Notice number: 5819
Warning: Grounded Vessel – Kwinana Beach
A vessel ‘Solar Wind’ (registration: AU944), being a 13.58m steel yacht is reported to be grounded at Kwinana Beach, approximately 50m south of Kwinana Bulk Jetty. The vessel and vessel debris may come adrift in prevailing conditions.
Chart reference: WA913 - Cape Peron to Dawesville
Location: -32: 14.533'S 115: 45.551'E
Start date:
06/09/2023
Issued:
06/09/2023
Notice number: 5802
Warning: Semi-submerged fixed metal pole, Shoalwater Islands Marine Park
Mariners are advised that a Semi-submerged fixed metal pole has been reported to be in Shoalwater Marine Park in Rockingham at the below location. The pole may be visible at low tide and is unmarked.
Mariners are advised to exercise caution when transiting the area.
Mariners are advised to exercise caution when transiting the area.
Location: -32: 17.43420'S 115: 41.82360'E
Start date:
14/07/2023
Issued:
14/07/2023
Notice number: 5756
Advice: Fremantle Seaweed Aquaculture Site Installation - Port Coogee
Mariners are advised that a new Aquaculture Farm is currently being installed in the waters north of the Port Coogee Marina.
This will involve the laying of multiple surface lines and floats within the farm lease boundary in long-line formation.
This area is marked by lit Yellow Special Markers at the extremity of the lease area.
Location of marker buoys:
32: 05.193S, 115: 45.007E
32: 05.141S, 115: 45.171E
32: 05.782S, 115: 45.420E
32: 05.819S, 115: 45.271E
Flash rate: Fl Y 3s
Mariners are advised to navigate with caution when transiting the area and keep well clear of the above aquaculture site
This will involve the laying of multiple surface lines and floats within the farm lease boundary in long-line formation.
This area is marked by lit Yellow Special Markers at the extremity of the lease area.
Location of marker buoys:
32: 05.193S, 115: 45.007E
32: 05.141S, 115: 45.171E
32: 05.782S, 115: 45.420E
32: 05.819S, 115: 45.271E
Flash rate: Fl Y 3s
Mariners are advised to navigate with caution when transiting the area and keep well clear of the above aquaculture site
Chart reference: WA001 - Ocean Reef to Cape Peron
Location: -32: 5.48231'S 115: 45.18195'E
Start date:
15/02/2023
Issued:
15/02/2023
Notice number: 5569
Advice: Deployment of Sub Surface Mooring Lines - Offshore Alkimos Vicinity
Mariners are advised that subsurface mooring lines for environmental monitoring have been deployed in the offshore Alkimos vicinity as follows:
Locations:
31° 42.3882'S, 115° 38.9472'E
31° 42.3218'S, 115° 38.9203'E
31° 38.1459'S, 115° 38.0995'E
31° 38.0906'S, 115° 38.0465'E
31° 34.3645'S, 115° 35.6441'E
31° 34.3042'S, 115° 35.5811'E
Each of the above mooring lines is attached to a subsurface float with a 4m clearance to the surface of the water at LAT (Lowest Astronomical Tide), with a logger and a clump weight on the seabed
Mariners are advised to exercise caution when transiting the area and keep well clear of the above subsurface mooring lines.
Locations:
31° 42.3882'S, 115° 38.9472'E
31° 42.3218'S, 115° 38.9203'E
31° 38.1459'S, 115° 38.0995'E
31° 38.0906'S, 115° 38.0465'E
31° 34.3645'S, 115° 35.6441'E
31° 34.3042'S, 115° 35.5811'E
Each of the above mooring lines is attached to a subsurface float with a 4m clearance to the surface of the water at LAT (Lowest Astronomical Tide), with a logger and a clump weight on the seabed
Mariners are advised to exercise caution when transiting the area and keep well clear of the above subsurface mooring lines.
Chart reference: WA986 - Quinns Rocks
Location: -31: 42.388'S 115: 38.947'E
Start date:
22/11/2022
End date:
31/05/2025
Issued:
24/11/2022
Notice number: 5456
Warning: Bent St Channel (Safety Bay) Encroaching Sandbar
Mariners are advised that the entrance channel to Bent St Boat Ramp (Safety Bay) is subject from time to time by the encroaching Tern Island sand bar.
The Bent Street boat ramp is currently open however, mariners are advised to exercise caution whilst navigating through this area and should not rely solely on the two (2) lit navigational buoys outside of Tern Island for safe navigation past any sand hazard or shallow water to the boat ramp.
Skippers are reminded to keep a proper lookout and safe speed at all times.
Alternative boat ramps can be accessed at Palm Beach, Point Peron and Port Kennedy (Southern Warnbro Sound)
The Bent Street boat ramp is currently open however, mariners are advised to exercise caution whilst navigating through this area and should not rely solely on the two (2) lit navigational buoys outside of Tern Island for safe navigation past any sand hazard or shallow water to the boat ramp.
Skippers are reminded to keep a proper lookout and safe speed at all times.
Alternative boat ramps can be accessed at Palm Beach, Point Peron and Port Kennedy (Southern Warnbro Sound)
Chart reference: WA001 - Ocean Reef to Cape Peron
Location: -32: 18.593'S 115: 43.125'E
Start date:
12/07/2022
Issued:
12/07/2022
Notice number: 1897
Advice: Deployment of LIDAR buoys, offshore Trigg vicinity
Mariners are advised that LIDAR (Light Detection and Ranging) buoys will be deployed intermittently in the offshore Trigg vicinity, approximately 1.5 nautical miles west of Trigg beach at the following locations:
LIDAR buoy location 1: 31° 52.696'S, 115° 43.113'E
LIDAR buoy location 2: 31° 52.594'S, 115° 43.121'E
LIDAR buoy location 3: 31° 52.532'S, 115° 43.318E
LIDAR buoys are circular buoys with side mounted solar panels and wind generators extended on top. They are yellow and black in colour, approximately 4.5m in diameter and 4m in height, and equipped with flashing yellow light.
Flash rate: Q(5) Y 20s
LIDAR buoys will be deployed periodically at the above locations until around 31 December 2024.
No vessel is to moor to or interfere with the above buoys at any time.
Mariners are advised to navigate with caution when transiting the area and keep well clear of the above buoys.
LIDAR buoy location 1: 31° 52.696'S, 115° 43.113'E
LIDAR buoy location 2: 31° 52.594'S, 115° 43.121'E
LIDAR buoy location 3: 31° 52.532'S, 115° 43.318E
LIDAR buoys are circular buoys with side mounted solar panels and wind generators extended on top. They are yellow and black in colour, approximately 4.5m in diameter and 4m in height, and equipped with flashing yellow light.
Flash rate: Q(5) Y 20s
LIDAR buoys will be deployed periodically at the above locations until around 31 December 2024.
No vessel is to moor to or interfere with the above buoys at any time.
Mariners are advised to navigate with caution when transiting the area and keep well clear of the above buoys.
Chart reference: WA957 - Trigg
Location: -31: 52.696'S 115: 43.113'E
Start date:
23/06/2020
End date:
31/12/2024
Issued:
23/06/2020
Notice number: 2020-66
Advice: Installation of submerged Light Logger Moorings, Offshore Ocean Reef
Mariners are advised that six (6) submerged light logger moorings have been deployed in the offshore Ocean Reef in mid-March 2021 at the following locations:
Location 1: 31° 45.705’S , 115° 43.337’E
Location 2: 31° 45.498’S , 115° 43.252’E
Location 3: 31° 45.071’S , 115° 43.477’E
Location 4: 31° 43.981’S , 115° 43.072’E
Location 5: 31° 44.184’S , 115° 43.042’E
Location 6: 31° 44.600’S , 115° 43.169’E
The above moorings will be submerged (1m at LAT) and are equipped with subsurface buoys, which are predominantly white in colour, approximately 0.2m in diameter.
Recovery date: 31/12/2025
Mariners are advised to navigate with caution when transiting the above area and keep well clear of the above light loggers at all times.
Location 1: 31° 45.705’S , 115° 43.337’E
Location 2: 31° 45.498’S , 115° 43.252’E
Location 3: 31° 45.071’S , 115° 43.477’E
Location 4: 31° 43.981’S , 115° 43.072’E
Location 5: 31° 44.184’S , 115° 43.042’E
Location 6: 31° 44.600’S , 115° 43.169’E
The above moorings will be submerged (1m at LAT) and are equipped with subsurface buoys, which are predominantly white in colour, approximately 0.2m in diameter.
Recovery date: 31/12/2025
Mariners are advised to navigate with caution when transiting the above area and keep well clear of the above light loggers at all times.
Chart reference: WA986 - Quinns Rocks
Location: -31: 44.600'S 115: 43.169'E
Start date:
12/03/2021
End date:
31/12/2025
Issued:
14/04/2021
Notice number: 2021 - 42