Silgeumri Cave

실금리굴

A sea cave the cruise boat noses up to

Hours

Follows cruise times

Address

Hongdo, Heuksan-myeon, Sinan

One of the ten named sights of Hongdo, a sea cave ringed by rock walls like a small fortress. Locals say the chamber inside is wide enough for a couple of hundred people. You cannot walk to it; the round-island cruise is the way. After looking down on the sea from Gitdaebong, you now look up at the cliffs from the water.