Khong Khong Long Lake is situated in the Bueng Khong Long (Thai: บึงโขงหลง) district of the newly established Bueng Kan province. The lake is a massive fresh water reservoir built in 1976 and finished in 1979 by his Majesty the King and the Royal Thai Irrigation Department.
The 13 km long and 2 km wide lake has an approximate size of 8,064 rai or 22 square km and is considered a major eco-tourism site in Southern Bueng Kan province.
The lake attracts water sports enthusiast, hunters, fishermen and nature loving people alike. Small food stalls and water sport gear rental shops are available to serve customers needs. Lakeside huts allow to rest and eat, while guarding playing kids.
In 1981 Khong Khong Long Lake has been registered as a wetlands area of international ranking.
The Lake can be reached by following the highway 212 from Nong Khai to Bueng Kan and further to Bueng Khla. Then take a rigth turn onto road 2026 and follow it until you reach Bueng Khong Long.