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.
Reviews for Cave of the Kastom Shark
Conditions
Ocean conditions, forecast and tides for Cave of the Kastom Shark
Plan & book
Ways to dive Gizo & Western Province, from day trips to liveaboards.
Day trips & courses
via GetYourGuideGuided dives, courses and snorkel trips with instant booking.
Find dive trips in Gizo & Western ProvincePlaces to stay
via Booking.comHotels and dive resorts near Gizo & Western Province.
Search stays in Gizo & Western ProvinceDive insurance
Most travel insurance excludes or limits scuba. Check what you need before you go.
Dive insurance explainedPartner links: we may earn a commission if you book, at no extra cost to you. How we make money
Where to Stay near Cave of the Kastom Shark
Prices from Booking.com. We may earn a commission at no extra cost to you.