Full scuba gear, tanks and weights can be hired from operators in Tutukaka or nearby Whangarei, including rental of drysuits or thick wetsuits in winter. Nitrox is available with some charters but should be pre booked. Freedivers are usually expected to bring their own long fins and suits, though some schools can provide rental packages for course participants.
Big items like twinsets, scooters or large camera rigs should be cleared with your chosen operator before arrival, as deck space on boats is finite. Most accommodations have hose points or dedicated rinse areas, but bringing a portable hang bar or extra carabiners can help dry gear in humid conditions.