Cave
4/5
Tham Kong Lor Cave
Tham Kong Lor (Kong Lor Cave) is a spectacular 7.5-kilometer subterranean karst cave located in Phu Hin Bun National Protected Area, Khammouane Province. Carved over millennia by the dark waters of the Nam Hinboun River, the cave features towering limestone ceilings up to 100 meters high and pitch-black galleries navigated entirely by motorized long-tail boats. Deeply revered by local villagers as the sacred realm of subterranean Naga serpents and river spirits (Phi Nam), Tham Kong Lor offers a thrilling, eerie journey into total darkness.