Cave of the Kastom Shark
Protected Area
Ha'apai
Why dive here
With 292+ marine species recorded in the area - including barracuda, blacktip reef sharks, grey reef sharks, sperm whales and whitetip reef sharks - Cave of the Kastom Shark offers some of Gizo & Western Province's richest cave diving.
The Cave of the Kastom Shark, just a short boat ride from Gizo, offers a gentle introduction to cave diving. You’ll drop down to about 15 metres, often with decent visibility, before finding the main entrance. Inside, the darkness is broken by your torch beam, revealing stalactites and the occasional reef shark resting on the sandy bottom, earning the cave its name. We found it a calm dive, without strong currents, making it a good choice for newer divers looking to try overhead environments without too much drama. It's a quick dip, but a memorable one if you’re into geological features and the chance of a sleeping shark.
Typical Cave of the Kastom Shark Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Deep dive (32m) - monitor air consumption closely. Advanced certification recommended.
Overhead environment - never enter without proper cave/cavern training, redundant equipment, and a guideline.
Always perform a 3-minute safety stop at 5m before surfacing.
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