Dadohaehaesang National Park is South Korea’s largest marine national park, offering spectacular island landscapes, diverse marine ecosystems, and a wide range of outdoor activities focused on coastal and island environments.
Dadohaehaesang National Park, established in 1981, is the largest national park in South Korea, encompassing an extensive area of the Dadohae (Sea of Many Islands) archipelago off the southwestern coast. This marine park includes over 1,700 islands and islets scattered across the Jeolla provinces, predominantly South Jeolla. The park features rugged coastlines, pristine beaches, unique rock formations, and rich tidal flats that host abundant marine life. Its ecological significance is heightened by various habitats including forests, wetlands, and salt marshes, supporting endangered species such as migratory birds and marine mammals. Visitors to the park can explore scenic hiking trails on several islands like Heuksando, Hongdo, and Geomundo, paddle through crystal-clear coastal waters, or take boat tours to observe marine biodiversity. The park is also culturally rich, with traditional fishing villages, historic temples, and lighthouses adding to the visitor experience. Popular activities include hiking, kayaking, bird watching, fishing, and photography. The park’s geography provides a combination of peaceful seascapes and dramatic cliffs, appealing to outdoor enthusiasts and nature lovers alike. Access to the islands is primarily by ferry or boat from nearby towns, preserving a sense of remoteness and natural tranquility. The park balances conservation and sustainable tourism, making it a vital marine conservation area and a premier location for marine outdoor recreation in South Korea.
Hongdo Island – famous for its dramatic red cliffs and striking rock formations
Heuksando Island – known for scenic hiking trails and traditional villages
Geomundo Island Lighthouse – a historic maritime landmark overlooking the sea
Tidal flats and marine wetlands – critical habitat for migratory birds and marine life
The world's largest island sea area with over 1,700 islands creating complex coastlines and diverse habitats.
A UNESCO biosphere reserve island famous for its vivid red volcanic cliffs and natural beauty.
Historic lighthouse offering panoramic views of the archipelago and maritime routes.