Dive-site story
Located off the northern coast of Orchid Island (Lanyu), Yunu Rock (Ji-mavonot in the native Tao language) is marked above water by an iconic hollowed volcanic sea stack. Submerged, the reef features rugged volcanic topography punctuated by canyons, arches, and coral-covered boulders sloping into clear open water. The site is famous for frequent encounters with sea snakes resting in crevices or swimming gracefully toward the surface to breathe.
Rugged volcanic basalt structures, swim-throughs, and rocky gullies
Regular encounters with amphibious sea kraits hunting around the reef
Expansive fields of soft corals and encrusting hard corals in exceptional visibility
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Spring through autumn offers calm sea conditions and minimal northeast monsoon interference.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Banded sea kraitLaticauda colubrina | Common | ||||||||||||
| Green sea turtleChelonia mydas | Common | ||||||||||||
| Clark's anemonefishAmphiprion clarkii | Common | ||||||||||||
| Whitetip reef sharkTriaenodon obesus | Rare | ||||||||||||
| Moorish idolZanclus cornutus | Common |
Marine forecast
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