Jeju Island - Seogwipo

Seogwipo · Jeju Province · South Korea

Seogwipo, on the southern coast of Jeju Island, is the undisputed capital of scuba diving in South Korea. This volcanic island, formed by eruptions that created a dramatic underwater landscape of basalt walls, caves, arches, and boulder fields, sits at the meeting point of the warm Tsushima Current and cooler Korean coastal waters. The result is a unique biogeographic crossroads where subtropical and temperate marine species coexist in an environment found nowhere else on the Korean Peninsula. The diving around Seogwipo is centred on a chain of small volcanic islets, the most famous being Munseom, Beomseom, and Supseom. These islets drop steeply into the sea, creating vertical walls and overhangs that are blanketed in some of the most spectacular soft coral formations in Northeast Asia. Shades of vivid pink, deep purple, fiery orange, and bright red soft corals wave gently in the current, transforming the dark volcanic rock into an underwater garden of extraordinary colour. Over 60 species of coral have been documented here, an impressive figure for waters this far north. The marine life reflects the area's transitional nature. Tropical species including lionfish, butterflyfish, and damselfish share the reef with temperate visitors like yellowtail, sea bream, and octopus. Cuttlefish and nudibranchs are macro favourites, while sea turtles make increasingly frequent appearances as waters warm through the summer. The volcanic terrain creates an abundance of caves and overhangs that shelter moray eels, groupers, and schools of cardinalfish. Jeju's diving culture is enriched by the living tradition of the haenyeo, the island's legendary free-diving women who have harvested the sea for centuries without scuba equipment. Recognised by UNESCO as an Intangible Cultural Heritage, the haenyeo remain active in the waters around Seogwipo. Jeju is easily accessible by frequent flights from Seoul, Busan, and other Korean cities, with flight times of about an hour. The island offers excellent tourist infrastructure, world-class cuisine, and a growing number of professional dive centres catering to both Korean and international divers.