For tide, boundaries and other information you can download the MarineMate app.
Whangarei Harbour Marine Reserve (PDF, 743K)
Shoreline boundary markers and floating boundary buoys, both visible from the water, mark the physical boundaries. Information signs are posted on land at a number of sites and boat ramps around the harbour. These signs outline the rules and regulations relating to the reserve.
Whangarei Harbour Marine Reserve GPS file (GPX, 2K)