Dive courses include a three-day PADI open-water course. For non-divers, the Perfect Day Ocean Cruise (www.aperfectday.co.nz, $189) includes lunch and snacks, snorkelling in the marine reserve, kayaking through caves and arches, paddle boarding, and sightings of dolphins (usually) and whales (occasionally). Cruises run from November to May, departing at 11am and returning at 4pm.

Check the website for upcoming initiatives, including a six-room dive lodge, and multi-day dive trips on the RV Acheron, a live-aboard expedition-style research vessel.