Tham Kong Lo
Swimplaces
Description: Tham Kong Lo or Kong Lor Cave is the limestone cave in Phu Hin Bun National Park, in Khammouane Province, Laos. It is located roughly 130 kilometres (81 mi) north of Thakhek, on the Nam Hin Bun River, which flows into the cave. Inside the cave is a pool which glows a bright emerald colour which locals hold as sacred, believing it to reflect the skin of the Hindi god Indra.
Video: https://www.youtube.com/watch?v=ngJlNrN92Qc