It's common for tours to visit this 6km-long limestone cave either prior to or after a visit to Myohyangsan. It has some enormous caverns and a large number of stalactites. Sights include the Pool of the Anti-Imperialist People’s Struggle, the Juche Cavern and the Mountain Peak of the Great Leader.
Ryongmun Big Cave

Lonely Planet may earn a commission from affiliate links on our site. All recommendations and reviews reflect our own independent opinions.