Activities · Destination Guide
Stewart Island Rakiura New Zealand
Cold-water kelp forests, a no-take marine reserve, and Great Walk wilderness in New Zealand's Deep South
Updated Feb 13, 2026 • 21 sources
Stewart Island / Rakiura Activity Planning
Pick an activity mode to compare signature sites, skill fit, and gear planning notes before you lock your trip.
Scuba
What It Feels Like
Stewart Island / Rakiura is about temperate wilderness diving: kelp forests, boulder reefs, and cold, clean water where invertebrates and seaweeds steal the show. The best-known protected area is the Ulva Island / Te Wharawhara Marine Reserve inside Paterson Inlet. Beyond the inlet, the island's remote south and west coasts (and Port Pegasus) reward experienced teams who can self-manage weather windows, boat logistics, and cold-water exposure. For access, local operators such as Rakiura Charters can water-taxi self-sufficient scuba divers to sites, but do not expect a full-service dive center vibe.
Signature Sites
Start Here
Ulva Island / Te Wharawhara Marine Reserve
Established in 2004, this 1,075hectare notake reserve protects kelp beds, reef fish, and exceptionally rich seaweed diversity (DOC highlights the area for its seaweed communities).
Paterson Inlet / Te Whaka a Te Wera Kelp Forests
Sheltered bays and channels make this the most reliable place to get underwater when the strait is rough.
Port Pegasus (Scout Bay and Micrometer Reef)
A remote southern harbor with granite walls, kelp, and the chance of larger wildlife when conditions allow.
Level Up
North Arm and the sheltered bays of the Rakiura Track coastline
Tidedependent boat access opens up calm water along the inner coast of Paterson Inlet.
Advanced
Foveaux Strait exposed reefs (weather window dives)
The strait can deliver excellent life and drama, but it is also where surge, chop, and current combine.
Planning Playbook
Operator Checklist
- Assume limited local scuba infrastructure. Bring your own regulators, exposure suit, computers, lights, and spares.
- Plan transport around weight limits. Flights to Stewart Island are convenient but commonly limit baggage to 15kg; the ferry is easier for heavy gear.
- Use local boat knowledge. Charters and water taxis can help you reach sites, but tides and weather control access.
- Respect protection rules. In the Ulva Island / Te Wharawhara Marine Reserve: no fishing, no taking, no feeding fish, and no habitat disturbance.
- File a float plan. Remote diving means you should agree on check-in times, carry oxygen on boats when possible, and keep profiles conservative.
Conditions Fallback
- Plan transport around weight limits. Flights to Stewart Island are convenient but commonly limit baggage to 15kg; the ferry is easier for heavy gear.
- File a float plan. Remote diving means you should agree on check-in times, carry oxygen on boats when possible, and keep profiles conservative.
Avoid
- Do not ignore foveaux strait sea state and cancellations advisories from local operators.