Harbourmaster Notifications
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
Harbour Notice 23-2025
The Blenheim and Wairau Rowing Club are holding the Marlborough Champs in the Wairau River as per below map.
This is an approved reserved area that will be reserved between 7am on 29 November to 4.30pm on 30 November 2025.
There will be umpire and safety boats on the water that will be patrolling at a speed less than 5… read on
Harbour Notice 22-2025
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, and potentially shallower.
Further updates will follow as survey work progresses.
Update 31 October 2025:
It’s been reported additional rocks have been found 450m north of the new shoal area (as marked above). The shallowest points… 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
Vessel PEKAPEKA will be performing hydrographic survey at Port Underwood as shown below.
The frames are marked withs lit pillar buoys (Fl Y 5s) and are positioned at the following WGS84 coordinates:
They will be operating between the hours of 0700 – 1700.
All mariners are advised to navigate with caution.
Harbourmaster. 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
Harbour Notice 12-2024
Pursuant to section 6.1 of the Marlborough Navigation Bylaw 2023, the CNZ boundary bearing 320°T from Scraggy Point light is hereby suspended.
A new CNZ inner boundary is in effect from position 41°13.069’ S 174° 17.999’ E, bearing 320°T to the opposing shore on Arapaoa Island.
The existing rules set out in section 4 of the Bylaw regarding the conduct… read on