Tutukākā Marina sits on the east coast of Northland, New Zealand, roughly midway between Auckland and the Bay of Islands, within the sheltered deep-water harbour of Tutukākā.

The marina serves as the primary gateway to the Poor Knights Islands Marine Reserve, one of the world's top-rated dive destinations, and places visiting vessels within easy reach of offshore marlin fishing grounds and two historic sunken wrecks, HMNZS Tui and Waikato.

The facility offers around 238 berths accommodating vessels up to 30 metres, with floating pontoons, fuel, fresh water, electricity, showers, laundry, sewage pump-out, waste oil disposal, and a public boat ramp.

Following surge damage caused by the 2022 Hunga Tonga–Hunga Ha'apai eruption, the fuel jetty and several pier heads were substantially rebuilt and strengthened.

Cafes, restaurants, and a dive centre are located nearby, making the marina a practical base for both short stops and extended coastal cruising.