Dive-site story
Located off the northern tip of Xiyu in the Penghu archipelago, this site sits adjacent to a distinctive basalt sea arch shaped by wave erosion. Divers explore submerged volcanic basalt formations, rocky ledges, and shallow boulder fields that drop toward sandy seafloors. The rugged topography creates sheltered channels and crevices where macro life and reef fish seek refuge from tidal flow.
Submerged columnar basalt foundations and eroded volcanic rock channels
Macro critters hiding within shadowed rock fissures and under ledges
Dramatic interplay of coastal geology above and below the surface
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Summer offers manageable sea conditions before the intense winter northeast monsoon brings heavy surf and unsafe surface conditions.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DamselfishPomacentridae | Common | ||||||||||||
| WrasseLabridae | Common | ||||||||||||
| NudibranchNudibranchia | Seasonal | ||||||||||||
| ButterflyfishChaetodontidae | Common | ||||||||||||
| ScorpionfishScorpaenidae | Common |
Marine forecast
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