Yak Loum is a lake and a popular tourist destination in the Ratanakiri province of Northeastern Cambodia . Located approximately 3 miles (4.8 kilometers) from the provincial capital, Banlung, the beautiful lake is the caldera of a large volcanic crater. Due to the lake’s tremendous depth (157 feet/48 meters), its water is exceptionally clean and clear. The lake is almost perfectly round and measures .45 of a mile (.75 kilometer) in diameter. Large trees and rich, lush rainforest, the home of many exotic birds and parrots, surround the lake.