Dive-site story
Located off the northeastern coast of Orchid Island (Lanyu), Battleship Rock consists of volcanic islet formations rising directly from deep open water. Underwater, the site drops into steep walls, massive boulders, and deep sandy gullies swept by oceanic currents. The exposed position invites pelagic species alongside sea fan forests and soft coral gardens, making it one of the premier offshore sites around Lanyu.
Vibrant gorgonian sea fans clinging to volcanic drop-offs
Frequent encounters with banded sea kraits and pelagic schools
Dramatic underwater topography featuring sheer basalt drop-offs and swim-throughs
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Spring through autumn offers calmer seas; winter brings strong northeast monsoon winds that make this exposed site inaccessible.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Banded sea kraitLaticauda colubrina | Common | ||||||||||||
| Whitetip reef sharkTriaenodon obesus | Seasonal | ||||||||||||
| Bigeye trevallyCaranx sexfasciatus | Common | ||||||||||||
| Great barracudaSphyraena barracuda | Seasonal | ||||||||||||
| Titan triggerfishBalistoides viridescens | Common |
Marine forecast
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