Dive-site story
Located just off the southern coast of Seogwipo on Jeju Island, Seopseom (Supseom) features volcanic underwater topography covered with temperate and subtropical marine life. Large volcanic boulders, drop-offs, and rocky gullies create sheltered habitats alongside steep faces swept by coastal currents. Dense fields of soft corals spread across the deeper slopes, while kelp forests flourish in the shallows during cooler periods.
Extensive walls of pink, red, and orange soft corals that flourish in strong tidal currents
Dynamic volcanic topography with dramatic rock crevices, small swim-throughs, and boulder fields
Rich mix of temperate and subtropical fish species concentrated around rocky overhangs
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Late summer and autumn bring the warmest water and the most consistent clarity, carried by the Kuroshio-branch current.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dendronephthya soft coralDendronephthya spp. | Common | ||||||||||||
| DamselfishChromis notata | Common | ||||||||||||
| Red seabreamPagrus major | Common | ||||||||||||
| Luna lionfishPterois lunulata | Common | ||||||||||||
| Japanese spiny lobsterPanulirus japonicus | Seasonal |
Marine forecast
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