Harbourmaster Notifications

Harbour Notice 03-2026
Seaworks are undertaking a survey operation in Cook Strait for Transpower New Zealand. During operations, survey vessel Seasurveyor will have a tow-fish deployed near the seabed and will be operating as Restricted Ability to Manoeuvre (RAM). The tow fish will generally be deployed to the seabed, however may be up to 1,000m behind the main survey vessel.

A Coastal… read on

​Harbour Notice 02-2026​
Lake Argyle - Closed for power boat club day Saturday 24 January 2026.

Back-up day on Sunday 25 January 2026.

Between 8am and 5pm on 24 January, Lake Argyle is reserved for powerboat racing. A back-up day is on 25 January between 8am and 5pm.

A speed-limit uplifting is also in force, only for vessels involved in the event.

The entire lake is… read on

​Notice to the public issued under section 305(1)(d) of the Maritime Transport Act 1994
To: Any member of the public

 

Incident: GOLDEN LEA

Marlborough District Council is carrying out marine oil spill response activities in response to the above incident. In order to take such action, and in the interests of public safety, the Regional On-Scene Commander considers it necessary to restrict access to [any… read on

A new Port Lateral marine beacon has been installed at the head of the Waikawa Bay Marina, Southern Breakwater.

This beacon will provide additional assistance to mariners transiting the marina entrance, alongside the Starboard Lateral beacon on the Northern Breakwater.

Information for the new Port Lateral beacon are as follows:

• Name - Waikawa Bay Marina. S Breakwater

• Location - 41 15.88 S… read on

A vessel has sunk at mooring 277 in Little Ngakuta Bay.

All vessels are to proceed at slow speed when navigating to the nearby jetty or manoeuvring near mooring 277.

All mariners are advised to navigate with caution. read on

20 November 2025
In addition, a wreck has been found in Tom Canes Bay located at position 41°19.175'S, 174°06.663'E. It is located approximately in 4.3 metres of water.

All mariners are advised to navigate with caution.

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24 October 2025
Uncharted rocks have been located during survey work in the vicinity of position 41 21.820’ S 174 05.519’ E.

Depths are at 6m below chart datum,… read on

Harbour Notice 21-2025
An algae bloom monitoring programme has commenced in Tory Channel / Kura Te Au.

The programme involves 6 passive sampling devices which are attached to small plates by a buoy located in

Deep Bay, Tawa Bay and Whatamango Bay.

Bay Name

Buoy # of 6

GPS co-ordinate

Whatamango Bay

Buoy 1 of 6

S 41°15'57.8" E 174°04'33.0"

Whatamango Bay

Buoy 2 of 6

S 41°15'57.1" E 174°04'31.9"

Note: this photo… read on

The Picton Marina Rear Leading Light affixed to Town Wharf #1 has been raised in height by one meter. This alteration has occurred to improve differentiation between both Front and Rear Leading Lights for inbound mariners. read on

If you’re using the app and images are loading normally, no action is needed. However, if your app fails to load images when you tap on a bay, the quickest way to fix this problem is to uninstall then reinstall the app. After uninstalling, search for Cruise Guide for Marlborough from the App Store (for iPhone users) or Google Play… read on

We’ve made some updates to our app since last summer. If you’re on Android and haven’t used Cruise Guide for a while, you can download the new improved Android app here. Note - the old Android app will not automatically update, you will need to install the new app and delete the old app. read on