Dadohaehaesang National Park
The largest national park in Korea - more than seventeen hundred islands scattered across the south-western sea.
Updated 21 October 2026
Dadohae means many-island sea, and the park designated in 1981 covers most of it - some seventeen hundred islands and islets and a huge area of water off the south-western corner of the country, making it by far the largest national park in Korea, about 2,320 square kilometres of which nearly 2,000 are sea, and one of the largest archipelagos anywhere. Almost none of it is reachable without a boat. The inhabited islands each have their own character: Heuksando and Hongdo far out, the latter a red-rock island ringed by cliffs where landing is restricted and the visit is a boat circuit; Bogildo with its poet's garden; Cheongsando's stone terraces; Jeungdo with its salt fields; Manjaedo and Gageodo for fishing and steep walking. Migratory birds use the islands heavily. Ferries run from Mokpo, Wando, Jindo and smaller ports, and they are cancelled in wind often enough that any island trip needs spare days built in.
Highlights
- The island scatter - hundreds of islands across open water.
- Hongdo - the red cliff island seen on a boat circuit.
- The inhabited islands - Heuksando, Cheongsando, Bogildo and others.
- The bird passage - migratory flocks through the archipelago.
When to go
April to June and September to October for the calmest crossings. Ferries cancel readily in wind - never plan a tight return.
Practical notes
Nothing here is reachable without ferries, and cancellations strand people regularly. Hongdo restricts landing and is viewed from a boat. Island facilities are guesthouses, not hotels.
Nearby
Mokpo, Wando and Jindo are the mainland gateways; Hallyeohaesang park continues east.
Key facts
Source: Wikidata, item Q484112, read on 18 October 2026.
What to pack for Dadohaehaesang National Park
Chosen from what this place is for. Tap a kit for the full checklist.
- Broken-in walking shoes or boots - Grip and ankle support matter more than looks; never hike in brand-new boots. Find on Amazon
- Travel rod + reel - A packable multi-piece rod fits in a case and covers most holiday fishing. Find on Amazon
- Binoculars - The single best wildlife tool - even a compact pair transforms a sighting. Find on Amazon
- Layers + a waterproof shell - Mountain weather turns fast; a packable rain jacket saves the day. Find on Amazon
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