Learn to plan and breathe enriched air safely in Auckland’s Hauraki Gulf. This compact TDI/SSI/SDI Nitrox course covers analysis, labeling and oxygen limits so you can extend bottom times with confidence.
More ways to explore the area's outdoor wonders
The boat rocks gently in the Hauraki Gulf while an instructor thumbs a gas analyzer and explains oxygen percentages; the city skyline sits low behind, Rangitoto’s volcanic cone a dark silhouette. In three focused hours divers convert classroom knowledge into routine—labeling cylinders, analyzing mixes, and adjusting dive plans for EANx 22–40. The course is compact but precise: expect a short theory refresher, hands-on analyzer work, and guided briefings before any applied dives.
Difficulty
moderate
Duration
3 hours
Fitness Level
Moderate fitness; able to carry gear and perform surface and shallow-water tasks.
Wildlife
History
The Hauraki Gulf has long been navigated by Māori and later European sailors; Rangitoto is a young volcanic island formed about 600 years ago that influences local currents and seabed structure.
Conservation
New Zealand emphasizes marine protection—respect no-take zones, avoid contact with reef life, and rinse gear to prevent cross-site transfer of invasive species.
Reserve your spot on the Nitrox Course (TDI, SSI or SDI) today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring your certification card
Proof of open water certification is required for practical dives—have it available to avoid delays.
Do the e-learning first
Complete the online theory before arrival to focus on hands-on analyzer practice and on-water skills.
Avoid flying after dives
Plan travel so you don’t fly within 24–48 hours of diving; nitrox procedures don’t change this risk.
Hydrate and disclose health issues
Complete the health questionnaire honestly—cardiovascular or respiratory issues may restrict participation.
Personal mask and snorkel
Comfort and fit speed up skills practice and reduce water swallowing during brief surface intervals.
Dive computer (nitrox capable)
Tracks oxygen exposure and no-decompression limits when using EANx mixes.
Wetsuit (3–5mm)
Appropriate thermal protection for Auckland’s variable water temperatures; thickness depends on season.
spring
Logbook and certification card
Required to verify prior certification and to record course completion and nitrox dives.