Auckland + Hauraki Gulf

Core Risk Factors

• Tide and current: Many sites are tide-driven. Plan for slack tide and avoid pushing into current when visibility is low.
• Swell and surge: Exposed points can surge even on small swell. Choose entry and exit points with a safe fallback.
• Cold stress: Winter water can be near 15°C. Cold increases task loading and gas use. Upgrade exposure protection and shorten dives if you are cooling down.
• Boat traffic: Use an SMB for ascents and a dive flag or float for freediving and snorkeling. Surface scan before ascending and avoid channel lines.

Good Habits That Reduce Incidents

• Do a weight check early in the trip and adjust for thicker exposure suits.
• Carry a cutting tool when diving in kelp or near lines.
• Use lights on day dives when visibility is low or the kelp canopy is dense.
• If you are not local, hire a guide for your first shore dive at a new site to learn entry points and hazard zones.

Auckland has hyperbaric capability for decompression illness treatment. In any suspected DCI or arterial gas embolism:

• Call emergency services immediately and request urgent diving medical support.
• Administer oxygen if trained and available, keep the diver warm, and avoid unnecessary exertion.
• Contact a diving emergency hotline for medical coordination and referral to a hyperbaric unit.