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Gascoyne notices

View navigational warnings, event notices and Temporary Notices To Mariners for the Gascoyne region.

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  Warning: Sunken vessel, Bernier Island Shark Bay

Description: A vessel (registration number: 71618, being a 6.7m aluminium half cabin), is grounded at Bernier Island (east coast), Shark Bay, in the vicinity of Cape Couture, approx. 30 nautical miles north west of Carnarvon. The vessel may come adrift in prevailing conditions.

Chart reference: AUS331 - Point Quobba to Pepper Point.


  Warning: Siltation at Tantabiddi Boat Ramp

Mariners are advised that due to recent rain events, runoff through Tantabiddi Creek has created a sandbank that bulges out from the creek and extends approximately 250 m seaward. Waters directly seaward and south of the boat ramp are obstructed with a drying sand bank.

The northern end of the boat ramp may still be functional however mariners are advised to navigate in this area with extreme caution. 
Location: 21° 54.71350' S, 113° 58.69038' E

Chart reference: Department of Transport Chart WA900 – Exmouth

Issued: 14/06/2021

Number: 2021-82

  Advice: Dredging works - ‘Swan 5’ - Denham Maritime Facility

Mariners are advised that maintenance dredging works within the Denham Maritime Facility basin and approach channel will commence in late April 2021 and is expected to proceed until August 2021.

Dredging will occur Monday to Saturday during daylight hours. The works are being carried out by a 17 m cutter suction dredge “Swan 5” equipped with a 40-metre floating pipeline marked by orange buoys displaying rhythmic flashing lights. The dredge has no self-propulsion and uses spuds and anchors to move.

The dredge and connected pipeline will remain in the area of operation after normal operating hours for the duration of the works.

The dredge will exhibit shapes and signs in accordance with the Prevention of Collisions at Sea Regulations 1983.

Before navigating past the dredge, mariners are requested to contact the operators who will be monitoring the following radio frequencies:

  • VHF Emergency channel 16 will be monitored and channel 73 is to be used for Ship to Ship communications
  • 27Mhz Channel 90

Mariners are advised to use caution when transiting the area and keep well clear of the above operations.

  • Start date: Late April 2021.
  • End date: 30/08/2021.
  • Issued: 21/04/2021.
  • Number: 2021-58.

  Warning: Aquaculture site unlit, Exmouth Gulf Southern end

An aquaculture site positioned in the Bay of Rest, Exmouth Gulf has been reported to be unlit.

Mariners are advised to navigate with caution.

  • Location: Vicinity of 22° 18.224'S, 114° 8.431'E
  • Chart: AUS Chart 328 – Montebello Islands to North West Cape
  • Issued: 14/04/2021

  Warning: Floating debris and falling hazards, Carnarvon – Temporary 8 knot speed restricted area, One Mile Jetty closed to all vessels and swimming

Due to Cyclone Seroja, the Carnarvon one mile jetty has been extensively damaged. Jetty debris, including clumped sections of the jetty deck and large timber pylons may be adrift in the vicinity, including at the entrance to the Fascine and Teggs Channel. Approximately 250m of the jetty structure has washed away and is expected to deteriorate and break up further. Navigational aids may also be damaged, off-station, missing and/or unlit.

  • Location: 24° 52.873'S, 113° 36.997'E
  • Chart Reference: Department of Transport Chart 982 – Carnarvon

Mariners are advised that a temporary 8 knot speed restriction is now in place and the waters surrounding the One Mile Jetty are closed to all vessels and swimming activities until further notice. 

Carnarvon 8 Knot area

Timbers and semi submerged obstructions may have dispersed from Carnarvon and drifted throughout the entire Shark Bay area - Please travel at a safe speed and navigate with extreme caution. 

Issued: 13/05/2021

  Advice: Installation of Directional Wave and Smart Buoy, Offshore Shark Bay Vicinity

Mariners are advised that one (1) Directional Wave Rider buoy (DWR) has been deployed in the offshore Shark Bay vicinity in early March 2021 at the following location:

  • 25° 25.20600’S, 113° 7.81200’E

The above buoy is predominantly yellow in colour (with black solar panels), approximately 0.42m in diameter and equipped with flashing yellow light (flash rate: Fl Y 2.5s)

  • Recovery date: July 2021
  • Location: 25° 25.20600’S, 113° 7.81200’E
  • Chart Reference: Aus 331– Australia – West Coast – Western Australia – Point Quobba to Pepper Point

Mariners are advised to navigate with caution when transiting the above area and keep well clear of the above DWR at all times. 

  • Start date: 01/03/2021
  • End date: 30/09/2021
  • Issued: 15/03/2021
  • Number: 2021 - 38

  Advice: Deployment of two directional wave rider buoys - Tantabiddi and Exmouth Gulf

Mariners are advised that two (2) DWRs (Directional Wave Rider buoys) have been deployed at Tantabiddi and Exmouth Gulf in early November 2020 at the following locations:

  • Tantabiddi: 21° 53.730'S, 113° 55.590'E

Both of the above buoys are predominantly yellow in colour (with black solar panels), approximately 0.42m in diameter and equipped with flashing yellow light (flash rate: Fl Y 2.5s).

Recovery date: 26 October 2021

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 above areas and keep well clear of the above DWRs at all times.

Location: 21° 50.139'S, 114° 16.784'E
Chart reference: AUS Chart 328 – Montebello Islands to North West Cape

  • Start date: early November 2020.
  • End date: 26/10/2021.
  • Issued: 10/11/2020.
  • Number: 2020-98.
  • Amended: 29/07/2021

  Advice: Acoustic Wave and Current instrument – Carnarvon

Mariners are advised of the installation of an Acoustic Wave and Current (AWAC) instrument that has been deployed off Carnarvon on 8 September 2020 with a provisional recovery date of mid to late 2022. 

The AWAC protrudes approx. 0.5m from the seabed (water depth is approximately 4 metres).

All Mariners are advised to exercise caution when transiting the area. 

  • Location: 24° 54.55 ’S, 113° 37.50 ’E.
  • Chart reference: DoT Chart WA982 - Carnarvon.
  • Start date: 08 September 2020.
  • End date: 30/06/2022.
  • Issued: 10/09/2020.

  Warning: Navigate with caution; Shallow water and shifting sand bars - Carnarvon Facsine

Mariners are advised that a large shifting sandbar has encroached upon the Fascine waterway, south of the boat ramp channel.

Shallow waters and shifting sand bars are reducing depths and severely restricting navigation.  

Mariners are advised that ocean access may not be possible if launching from the Fascine boat ramp at low tides.

The Carnarvon Boat Harbour boat ramp is open to provide an alternative option for launching vessels via Teggs Channel.

Chart Reference: WA 982

  Advice: Compulsory pilotage requirements, Port of Carnarvon

Port of Carnarvon

Vessel masters are reminded that all vessels wishing to transit or operate within the port limit which either:

  1. Have a LOA of 35 meters or greater; or
  2. Are engaged in towing operations where the total length of the tow (measured from the bow of the towing vessel to the stern of the towed vessel) is 35 metres or greater.

Are required to engage the services of a suitably licensed marine pilot or the vessel Master must be the holder of a current Port of Carnarvon Pilot Exemption Certificate.

Vessels, vessel Masters or operators of vessels affected by this requirement are invited to approach the Department of Transport Harbour Masters office at to apply for a Pilot Exemption Certificate to be issued.

Authorised by: Captain Steven Wenban, Harbour Master, Port of Carnarvon, Marine Safety Department of Transport.

  • Start date: 08/02/2018.
  • End date:
  • Issued: 08/02/2018.
  • Number: 2018-23.

  Advice: Drifting jetty timbers, Norwest Whaling Jetty, Carnarvon

Drifting jetty timbers

Mariners are advised that jetty debris from the Carnarvon Norwest Whaling Jetty (including large timber pylons) may be adrift within the vicinity. The jetty is located adjacent to Binning Road at the following coordinates (approx. 1 km south of the Carnarvon One Mile Jetty).

  • Latitude: 24° 52.983's, Longitude: 113° 37.867'e.
  • Chart Reference: Department of Transport Chart WA982 - Carnarvon.

Mariners are to navigate with caution when transiting the area.

Authorised by: Mark Briant Manager, Navigational Safety Marine Safety Department of Transport.

  • Issued: 11/02/2015.
  • Number: 2015-37.

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Page last updated: Thu Jul 29 2021 4:02:08 PM