Across the country to visit a neighbor to watch the beauty of Niagara in Asia at Pakse Laos? Namtok PHA Pheng icon is the largest waterfall in the lower part of the Mekong River. When the flood water is flowing through the mass on a large stone floor, this one comes down. 21 meters from the sprinkler to spread scattered around the banks of the Mekong River, as well as the sound of the waterfall would be so emphatically to. Best Rapids Li ghost. It is located in the vicinity of large rock Rapids. In summer the island excels in the water past the surface clearly. Gives big river flows through the rocks is a magic line that seems to touch on.