Shark Cave (Three Islets)

The same site is sold as both Three Islets and Shark Cave depending on the operator. The name comes from nurse sharks that were once dependable in the tunnel and are now rarely seen there. Surge through the cavern can be heavy and the site does not suit divers new to overhead environments.

Depth

5–30m

Current

Strong

Diver level

Advanced open water

Entry

Boat

Unique features

  • Three small islets about 2km north of Great Swinton Island, roughly 75km from Kawthaung
  • A cavern on the northwest corner starting at 5m, dropping to 16m and narrowing into a tunnel about 20m long through to the east side
  • Ghost pipefish, seahorses, morays and cuttlefish on the walls; grey reef and whitetip reef sharks in the blue

Sources & last checked

Checked August 2026

This is a researched draft, not yet human-verified. The seasonality and logistics are drawn from the sources below — confirm specifics (permits, fees, closures) with an operator before you book.

Note on the data: Coordinates are approximate; not surveyed dive-site GPS.