Dive-site story
Towering off the northeastern coast of Green Island, this dramatic sea arch rises sheer from the seabed to pierce the surface. Divers explore massive volcanic rock structures, submerged canyons, and wide swim-through passages carved by strong oceanic currents. The nutrient-rich Kuroshio Current regularly sweeps past the formation, attracting pelagic fish and feeding dense colonies of sea fans attached to the shaded cavern walls.
Monumental volcanic rock formations and deep underwater arches
Expansive sea fan gardens covering shaded rock walls
Regular encounters with pelagic schools hanging in open water
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
The summer months bring calmer seas and easier boat access, whereas strong winter monsoons create rough conditions along this exposed coast.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Green Sea TurtleChelonia mydas | Common | ||||||||||||
| Giant TrevallyCaranx ignobilis | Common | ||||||||||||
| Banded Sea KraitLaticauda colubrina | Common | ||||||||||||
| Whitetip Reef SharkTriaenodon obesus | Seasonal |
Marine forecast
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