Tanna Blue Cave
Blue Cave
A sea cave on Tanna’s northwest coast. You swim under the reef and into the cave, where light from an opening in the roof turns the water a vivid royal blue.
The Tanna Blue Cave is on the northwest coast of Tanna Island, north of White Grass Airport. It is a limestone sea cave partly submerged in the ocean. Visitors reach nearby shores by small boat or four-wheel-drive vehicle, then swim through the opening beneath the reef to enter: at low tide you can swim in directly under the rock overhang, while at high tide you need to hold your breath and dive for a short stretch. Inside, the cave is spacious, and light streams in through an opening in the roof, turning the seawater a bright royal blue, with tropical fish often visible. Half-day tours are usually arranged by resorts on the west coast or local guides, and they include boats, snorkel gear, and a guide. Note that a guide must accompany visitors. Those who are not confident swimmers should choose low tide. Tours are canceled when winds and waves are strong.
Opening hours
By tour dates (tide-dependent)
Nearby sights
- White Grass Plains & West Coast
- Giant Banyan Tree (Tanna)
- Yakel Kastom Village
- Lenakel & Market
- Yasur Ash Plain (Siwi)
- Mount Yasur
- Sulphur Bay (John Frum Village)
- Port Resolution