Hongdo Island
A small protected island of red-tinted cliffs, arches and sea stacks off the southwest coast, seen mainly from a boat circuit around its shore.
Updated 25 August 2026

AI illustration
Hongdo is a small island at the western edge of Dadohaehaesang national park, a couple of hours by fast ferry beyond Mokpo, and its name refers to the reddish tint of its rock. The island is essentially a ridge of cliffs, arches, sea stacks and caves dropping straight into the water, and the accepted way to see it is the boat circuit that leaves the harbour and works its way around the whole coast in a couple of hours, threading between the stacks where the swell allows. Because the island is protected, walking is limited to marked paths and the two small villages, and the interior is closed. Ferries are cancelled outright in rough weather, often enough to plan around.
Highlights
- The boat circuit - the two-hour trip around the island past the arches and stacks.
- The red cliffs - the rock faces that give the island its name, strongest in low sun.
- The village harbour - the small settlement where the ferries and tour boats tie up.
- The sea stacks - the towers and arches standing off the shore.
When to go
Late spring and early autumn have the calmest seas and clearest light; the low sun of morning and evening brings out the colour in the rock. Summer is the busiest season and typhoon risk runs from July into September. Winter crossings are frequently cancelled. Always allow a spare day at the end of the trip.
Good to know
Getting here is a commitment: a long trip to Mokpo, then a ferry that rolls badly in any swell, and boats that stop running when the wind gets up, which can leave you on the island or unable to reach it. Accommodation and food on Hongdo are limited and basic for the price. If the boat circuit is cancelled, there is very little else to do.
Nearby
Heuksando lies on the same ferry route, and the Mokpo waterfront is the mainland gateway.
Key facts
Source: Wikidata, item Q12625354, read on 18 October 2026.
What to pack for Hongdo Island
Chosen from what this place is for. Tap a kit for the full checklist.
- Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
- Head torch + spare batteries - Hands-free light is essential; caves are truly dark. Find on Amazon
- Quick-dry towel - A microfibre towel packs small and dries in minutes. Find on Amazon
- Grippy closed shoes - Cave floors are wet, muddy and slick with formations. Find on Amazon
Some links on this page are Amazon affiliate links - if you buy through them we may earn a small commission at no extra cost to you.
All packing kitsPlan your trip
Where to start if Hongdo Island is going on the list.
Booking links on this page are affiliate links - if you book through them we may earn a small commission at no extra cost to you. It never changes what we write about a place.
Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.




