Gosu Cave

단양 고수동굴

Limestone cave of stalagmites and stalactites

⚠ Wet, slippery floor

Hours

From 9am; last entry 5pm

Tickets

11,000 won adult, 7,000 won youth, 5,000 won child

Address

8 Gosudonggul-gil, Danyang-eup, Danyang

Inside it stays cool even in midsummer, with stalagmites and stalactites lined up under soft lighting. The path is narrow with lots of stairs up and down. People pause at each named formation for a photo. It suits a rainy day or a summer heatwave. A full loop takes about 40 minutes.