Bengdugil Cave

Bengdugil Cave has a total length of 4,481m, making it one of the most complex maze-like lava tubes in the world. Formed near the surface, it features several collapsed entrances. The interior contains various cave formations such as multi-layered structures (2nd and 3rd floors), lava columns, and lava bridges. Along with Manjanggul Cave, it is registered as a UNESCO World Natural Heritage site.