Sam-pan-bok is the canyon resembles a mountain sprouting out into the Mekong. Spectacular views can be seen here of both the canyon and the river. Here you will find over 3000 holes, big and small scattered all over the place. Some holes look like familiar shapes, animals, etc. There is even a hole that looks like Mickey Mouse. The Esarn and Laotian word for ‘hole’ is ‘bok’, thus the translated name is Three (sam) Thousand (phan) Holes (bok).