Dive-site story
Situated along the western coastline of Ulleung Island, Hakpo Harbor is a staple diving location characterized by dramatic volcanic topography. Massive basalt boulders, drop-offs, and rocky gullies extend directly from the sheltered bay into open sea. The underwater landscape features dense seasonal macroalgae beds and healthy invertebrate populations thriving along the jagged volcanic formations.
Rugged volcanic rock shelves and swim-throughs just outside the harbor mouth
Dense seasonal kelp and sargassum forests hosting schooling coastal fish
Direct entry from the protected shore with immediate access to deep rocky reefs
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Late summer and early autumn provide the warmest water temperatures and optimal visibility around Ulleung Island.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pearl-spot chromisChromis notata | Common | ||||||||||||
| Korean rockfishSebastes schlegelii | Common | ||||||||||||
| Japanese sea bassLateolabrax japonicus | Seasonal | ||||||||||||
| Common octopusOctopus vulgaris | Common | ||||||||||||
| Japanese spiny lobsterPanulirus japonicus | Rare |
Marine forecast
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