Castle Rock

The northern shark site. Negative entry, drop to the ridge, hook in and watch the predators work the schooling fish. Nothing here is sheltered — if the current is running, it is running everywhere on the mount.

Depth

4–30m

Current

Strong

Diver level

Advanced open water

Entry

Boat

Unique features

  • Submerged seamount rising from about 75m to within 3-4m of the surface, in open water north of Gili Lawa
  • Whitetip and grey reef sharks patrol daily; giant trevally, dogtooth tuna and mackerel hunt through the water column
  • Reef hook dive on the current-facing side; 20-30m+ visibility in the dry season

Sources & last checked

Checked July 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.