Hallyeo Haesang National Park: Korea's Marine Wilderness

Hallyeo Haesang National Park (한려해상국립공원) is a marine national park stretching 300 kilometres along Korea's southern coast from Geoje Island in the east to Yeosu in the west. It encompasses 545 square kilometres of sea, 48 inhabited islands, and hundreds of uninhabited islets. The park was designated in 1968 and is celebrated for its exceptionally clear water, diverse marine ecosystems, and the dramatic scenery of pine-forested islands rising from the sea.

The Hallyeo waterway was a crucial maritime corridor throughout Korean history, used for trade, military operations, and transport between the peninsula and Japan. Admiral Yi Sun-sin fought several of his most celebrated naval victories against Japanese fleets in these waters during the Imjin War (1592–1598), including the Battle of Hansan Island — considered one of the greatest naval battles in world history. The national park designation has protected this historically and ecologically significant seascape from industrial development.

From Tongyeong, ferries connect to the park's islands including Bijindo (known for its twin inlets), Somaemuldo (famous for windswept cliffs), and Hallyeo's closest islets. Kayaking through the inter-island channels is increasingly popular. The Tongyeong cable car provides aerial views over the park's western sector. Coastal hiking trails on accessible islands offer encounters with undisturbed natural scenery. Scuba diving and snorkelling are possible at designated marine sites.

Ferry schedules to the islands are weather-dependent and seasonal; check with the Tongyeong Ferry Terminal in advance. Bijindo is one of the most accessible and popular island destinations (about 50 minutes by ferry). Spring and autumn have the clearest weather and most comfortable hiking conditions. Bring seasickness medication if you are sensitive to boat motion, as the crossing can be choppy in strong winds.