The highest falls reach to 21 metres (69 ft); the succession of rapids stretch 9.7 km (6.0 mi) of the river’s length. The average discharge of the cataract is nearly 11,000 m3/s (390,000 cu ft/s), with the highest flow on record at over 49,000 m3/s (1,700,000 cu ft/s). With a width of more than 10km, Khone Phapheng waterfall is considered the largest waterfall in Southeast Asia and the world.
The falls are characterised by thousands of islands and countless waterways, giving the area its name Si Phan Don or ‘the 4,000 islands’. It can be considered to include two main parts are Khong Phapheng waterfall and Somphamit waterfall.
The falls are home to the Mekong giant catfish, an endangered species of catfish said to be the largest freshwater fish in the world. The plabuck is alleged to reach lengths of 3 m (10 ft) and weights of up to 646 pounds (293 kilograms).
Khone Phapheng has become an indispensable destination in the journey to explore the southern part of Laos for many tourists. The best time to go to Khone Phapheng waterfall is from November to March, with pleasant, dry weather and little rain, convenient to travel.
According to Wikipedia AND Vietkite.com.vn
