4 sea caves · down to 30 m · 4 suitable for an intro team
Cave diving in Niue
- Sea caves4
- Max depth30 m
- Water temperature20–28 °C
- Dive centres1
Diving and fills
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Why come here
Niue is a single coral island in the middle of the South Pacific, and under its cliffs lie sea caves where you swim out of daylight: the domed chamber of Dome Cave, the air pocket at the back of Bubble Cave, the two caverns of Limu and the vertical chimney of The Chimney. You dive them guided with the island's only dive operator, in clear water of 20–28 °C with visibility rarely under 30 m. These are not cave dives in the usual sense, but some go deep and let you out only the way you came. Plan around the season (the operator closes from December to February) and around the distance: there is no chamber on Niue, and evacuation goes to Auckland.
Don't miss
- Dome Cave (Alofi Bay): a chamber inside the island full of ancient stalactites, stalagmites and fluted columns, where katuali, the sea snake found only on Niue, swim in and out with you.
- Bubble Cave (Niue): the only light comes from the entrance behind you, until you surface at the back in the bubble, a chamber full of stalactites.
- Limu Twin Caves (Ana Mahaga): two large caverns side by side, joined by a tunnel, with painted crayfish in the cracks and with luck a reef shark.
On a rest day
- Huvalu rainforest caves: An extensive, scattered network of caves in the Huvalu Conservation Area on the southeast coast, visited only with a guide; tours leave from the blue 'Ebony Carving' sign at the southern end of Hakupu.
- Talava Arches: A walk of about 30 minutes from Hikutavake on the northwest coast, with caves you clamber through on guide ropes; at low tide you cross the reef to the coastal arch.
All 4 sea caves
| Site | Max depth | Type | Certification |
|---|---|---|---|
| Bubble Cave (Niue)Entry or dive feeBackmount · Cavern | – | Backmount | Cavern |
| Dome Cave (Alofi Bay)Entry or dive feeBackmount · Cavern | 30 m | Backmount | Cavern |
| Limu Twin Caves (Ana Mahaga)Entry or dive feeBackmount · Cavern | 28 m | Backmount | Cavern |
| The Chimney (Niue)Entry or dive feeBackmount · Open water / no overhead | 28 m | Backmount | Open water / no overhead |
Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training.
Dive centres and fill stations
1 dive centres, fill stations and instructors
Niue Blue (Tamakautoga)
Next to the Scenic Matavai Resort, Tamakautoga
Guided dives: Dome Cave (Alofi Bay), Bubble Cave (Niue), Limu Twin Caves (Ana Mahaga), The Chimney (Niue)
According to Niue Tourism and the Niue Pocket Guide the island's only PADI dive operator (also a PADI Eco Center). Recreational dives, night dives, Discover Scuba, refreshers and kids' courses; gear is usually included in the price. No pick-ups: you get to the shop yourself. Closed from around 1 December to 1 February; book ahead.
Order: partners first, clearly marked as partner; then dive centres by distance from Alofi and independent instructors by name. Not a recommendation: check what they offer yourself.
On this list, or should you be? Get a free partner card →Where to stay
Find a place near Alofi
Villages that work well as a base for the caves in this region. Find a place for your team:
- AlofiBooking.com ↗
The links to Booking.com are affiliate links: if you book through one, DiveTripPlanner earns a small commission. You pay the same.
Practical info: rules, fills and emergency numbers
Emergencies
- 999; Niue Foou Hospital 4100, police 4324. There is no chamber on Niue: registered dive companies carry only first aid, and decompression sickness means evacuation to New Zealand (Smartraveller). The nearest confirmed chamber is the Slark Hyperbaric Unit in Devonport, Auckland, reached through the Diving Emergency Service (+64 9 374 6758, day and night). Count on hours to a day before you are in a chamber: dive well within your no-deco limits and take insurance that covers evacuation.
Gas and fills
- Gas: air through Niue Blue; nitrox, trimix or CCR support not confirmed: ask.
Water and season
- Season: the dive operator closes from about 1 December to 1 February; from January to March the sea is often rough. Cyclone season runs from November to April. Humpback whales are around from July to October, and many sea snakes gather in the caves from April to June.
- Water: 20–27 °C according to the Niue Pocket Guide, 24–28 °C by month according to Niue Tourism; count on 20 °C. Visibility rarely drops below 30 m.
Getting around
- Travel: flights go only through New Zealand (Auckland). Niue Blue does not pick up: arrange your own transport to Tamakautoga.
Good to know
- Read this first: Niue is a single coral island with sea caves in its cliffs: the domed chamber of Dome Cave, the air pocket at the back of Bubble Cave, the two caverns of Limu and the vertical tunnel of The Chimney. You dive them only guided, with the island's one dive operator, Niue Blue; these are not cave dives in the usual sense, but places where you swim out of daylight.
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