Dive-site story
Set inside a sunken volcanic crater surrounded by jagged karst cliffs on Coron Island, this lake is famous for its dramatic thermocline and halocline layers. As divers descend through the brackish surface waters, the water shifts from fresh to salt while the temperature spikes dramatically, producing optical distortions resembling melted glass against sheer underwater limestone formations.
Pronounced thermocline transition where water shifts dramatically in heat and salinity
Surreal underwater limestone karst topography and soft silty bottom
Distinct shimmering halocline visual effect suspended in clear water
Unique sensation of diving without a thermal protection suit due to hot subterranean layers
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Calmer seas around Coron Island facilitate smooth boat transfers and trail access.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Banded cleaner shrimpStenopus hispidus | Common | ||||||||||||
| Lake gobyGobiidae | Common | ||||||||||||
| Great barracudaSphyraena barracuda | Rare |
Marine forecast
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