Local notices to mariners Local notices to mariners
Notices to mariners cover events, local issues and infrastructure issues that may affect navigation in the Auckland region.
Local navigation aids warnings
For any enquiries please contact harbourmaster@at.govt.nz
On this page: Local notices to mariners currently in force
- 15 - 23 Marine construction, Hobsonville Point
- 13 – 23 Missing Channel Marker, Weiti River
- 04 – 23 Navigation Hazard – Debris in Auckland Waterways
- 43 – 22 Fallen trees, Matakana River
- 42 – 22 Fallen trees, Weiti River
- 27 – 22 Sunk boat, Wairoa River, Clevedon
- 41 – 21 Great Barrier Island – no anchoring areas
- 19 – 21 Navigational hazard, sand bank shoaling, Tamaki River
- 12 – 21 Kennedy Point Marina Construction Zone
- 02 – 21 Navigational hazard, a lost mast near Maraetai
- 57 – 19 Submerged pile in the approaches to Tramcar Bay Boat yard, Whangateau
- 32 – 19 Motuihe Wharf Closure
- 28 – 18 Hobson Bay / Okahu Bay wave screen
- 04 – 18 Half Moon Bay, Bucklands Beach marina damaged breakwater, low wake zone
- 50 – 17 Navigation Hazard Sunk Yacht Henderson Creek
- 22 – 17 Wairoa River Fallen Tree
- 08 – 17 Chart Plotters (Updated)
15 – 23 Marine construction, Hobsonville Point
All mariners are advised that marine constructions will be commenced at Hobsonville Point on water, the affected area is located on the map below. Operations will be between 22/05/2023 to the end of 2023, weather permitted, and platform and barge will be involved in construction.
All mariners are advised to navigate with caution while operation this area.
*Not to be used for navigation.
Jason Son
Maritime Officer
Harbourmaster’s Office
13 – 23 Missing Channel Marker, Weiti River
All mariners are advised that a Starboard channel marker at Weiti River mouth has been missed and advised to navigate with caution while operating this area.
*Not to be used for navigation.
Jason Son
Maritime Officer
Harbourmaster’s Office
Notice: 04 – 23 Navigation Hazard – Debris in Auckland Waterways
All mariners are advised that logs and other flotsam may be encountered while navigating in the waters of Auckland region as a result of the recent flooding and extreme weather.
All mariners are advised to maintain a proper lookout and navigate with extreme caution.
Pula Ranasinghe
Maritime Officer
Notice: 43 – 22 Fallen trees, Matakana River
All mariners are advised that there are several fallen trees reported in upper reaches of Matakana River, potentially impeding navigation in this area. All mariners are advised to navigate with caution when operating in this area.
*Not to be used for navigation.
Jason Son
Maritime Officer
Harbourmaster’s Office
Notice: 42 – 22 Fallen trees, Weiti River
All mariners are advised that there are several fallen trees reported in upper reaches of Weiti River, potentially impeding navigation in this area. All mariners are advised to navigate with caution when operating in this area.
*Not to be used for navigation.
Jason Son
Maritime Officer
Harbourmaster’s Office
Notice: 27 – 22 Sunk boat, Wairoa River, Clevedon
All mariners are advised that a sunk boat is reported at S36.9809231 E175.0438501, Wairoa River, Clevedon. All mariners are advised to navigate with caution while operating in this area.
*Not to be used for navigation.
Jason Son
Maritime Officer
Harbourmaster’s Office
Notice: 41 – 21 Great Barrier Island – no anchoring areas
This notice replaces previous Local Notice to Mariners 39 – 21.
All mariners are advised that there are three no anchoring/closed areas on Great Barrier Island. The no anchoring areas are: Blind Bay, Whangaparapara and Tryphena Harbours. You can anchor with a permit from MPI, but not for any other reason.
There is guidance on the MPI page.
Please contact Ministry of Primary Industries for further details Ministry for Primary Industries.
*Not to be used for navigation.
Jason Son
Maritime Officer
Notice: 19 - 21 Navigational hazard, sandbank shoaling, Tamaki River
All mariners are advised that a sandbank, which is North of the No.15 marker in Tamaki River, is shoaling due to sand-building. Locations are identified as per below and the depth in the vicinity could be lower than charted depth.
All mariners are to navigate with additional caution while operating in this area.
*Not to be used for navigation.
Jason Son
Maritime Officer
Notice: 12 - 21 Kennedy Pt Waiheke Island Marina Development Project Stage 1
All mariners are advised that construction work for the new Kennedy Point Marina Devolvement will commence next week. Construction vessels, including a Jack-up Barge, will be operating in the area highlighted below.
All vessels are requested to keep clear of the marina construction zone and all authorised vessels to maintain a safe distance from any construction and work vessel during Stage 1 of the marina construction programme.
*Not to be used for navigation
Bruce Goff
Maritime Officer
Harbourmaster’s Office
Notice: 02 – 21 Navigational hazard, a lost mast near Maraetai
All mariners are advised that a navigational hazard is reported near Maraetai (GPS coordinates 36 51.289S, 175 00.569E). A 16-metre long mast was lost and attached with an orange buoy for location.
All mariners are advised to navigate with caution while operating in this area.
*Not to be used for navigation.
Jason Son
Maritime Officer
Notice to Mariners: 57 - 19 Submerged pile in the approaches to Tramcar Bay Boat Yard, Whangateau
The Harbourmaster has received reports of a submerged pile in the approaches to Tramcar Bay boat yard in the waters between Whangateau Harbour and Tramcar Bay.
All mariners are advised to navigate with extreme caution when operating in this area.
Not to be used for navigation.
Pulasthi Ranasinghe
Maritime Officer
Notice to Mariners: 32 - 19 Motuihe Wharf Closure
All mariners are advised that the Department of Conservation has closed the Motuihe wharf due to public safety, the wharf will remain closed until further notice.
The Department is working closely with engineers to look at options available to remedy issues and re-open the wharf as soon as practicable.
The Department apologises for any inconvenience and will continue to keep the public informed as they seek solutions.
Updates will be provided on the DOC website and should you require further information, please contact the DOC hotline on 0800 362 468.
Map not to be used for navigation.
Pulasthi Ranasinghe
Maritime Officer
Notice: 28 - 18 Hobson Bay/Okahu Bay wave screen
All mariners are advised to navigate with caution in the vicinity of the Hobson Bay/Okahu Bay derelict wave screen. Mariners are reminded that they should only navigate through the recognised entry/exit (as per chart NZ 5322).
Map not to be used for navigation.
Christiaan Moss
Deputy Harbourmaster
Notice: 04 - 18 Half Moon Bay, Bucklands Beach marina damaged breakwater, low wake zone
All mariners are reminded to reduce their speed to 5 knots and/or their minimum steerage speed, in order to create a low wake while in the vicinity of the Bucklands Beach Marina. The breakwater was damaged by the recent storm event and requires extensive repair. Mariners should navigate with caution while in this area.
Map not to be used for navigation.
Christiaan Moss
Deputy Harbourmaster
Notice: 50 - 17 Navigation Hazard: Sunk Yacht - Henderson Creek
All mariners are advised of a yacht 9.7 meters in length that have sunk in the Henderson Creek, potentially impeding navigation. The yacht lies on the eastern side of the creek bank.
GPS coordinates:
- Latitude 36° 44' 123
- Longitude 174° 46' 123
All mariners are advised to navigate with extreme caution when transiting the creek.
Map not to be used for navigation.
Bruce Goff
Maritime Officer
Notice 22 - 17: Wairoa River, fallen tree (upper reaches), 20 July 2017
All Mariners are advised that a large tree has fallen into the upper reaches of the Wairoa River, potentially impeding navigation.
GPS coordinates:
- Latitude 36°58’840
- Longitude 175°02’655
All mariners are advised to navigate with extreme caution in this area.
The map is not to be used for navigation.
Bruce Goff
Maritime Officer
Notice 08 - 17: Chart Plotters - updated 14 March 2017
All Mariners are reminded that electronic chart plotters are to be used as an aid to navigation and paper charts should be updated and consulted.
Electronic raster charts used on some plotters may not incorporate the latest chart corrections.
Mariners are reminded to use up to date charts for navigation and advised to contact their plotter supplier if in doubt.
Harbourmaster’s Office
Some images on this page are based on/include LINZ’s data which are licensed by Land Information New Zealand (LINZ) for re-use under the Creative Commons Attribution 4.0 International license.
Pest warning: Mediterranean Fanworm
The Mediterranean Farmworn is a pest that has been spotted in the Waitemata Harbour/inner Hauraki Gulf, as well as the Whangarei Harbour and Lyttleton Port.
Keep your boat's hull clean to reduce the risk of this pest clinging and causing damage to our marine life.
Marine Biosecurity Information: New Rules & Regulations
Marine pests spread easily through ballast water and hull fouling, including Mediterranean fanworm (Sabella Spallanzani) and Clubbed tunicate (Styela clava). Check to ensure your hull is clean and be aware of other regions rules before leaving Auckland.
Visit marinepests.nz for more information and to check marine biosecurity rules and regulations for different regions in the northern North Island.
Read further information on marine pests (PDF 334KB)
Weather information
For up-to-date weather information, visit the MetService website.
Link to Coastguard Now Casting Weather Information VHF Channels: https://www.coastguard.nz/boating-safely/marine-weather