Yap Caverns
Best time to dive
January to December; December to April
What you might see
- Grey reef sharkLikely
- Moray eelLikely
- NudibranchLikely
Sightings are seasonal probabilities, not promises - even in peak season nature does its own thing.
Certification & difficulty
Open Water
Snorkelling
Not a snorkel site - no - depth range (down to ~30m) and swim-through cavern features make this a scuba dive site, not documented as a snorkel option
Safety notes
Overhead-environment elements in narrow chimneys/swim-throughs (though generally open/well-lit, not true cave diving); current convergence zones outside the cavern network at the island's southern tip; approx. 90-minute bottom time dives require good air management
Permits & fees
- (no specific fee amount verified)
Permits and operators change - confirm before booking.
Location
Nearest hub: Colonia (Yap)
This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.

