Kaligandaki Canyon, with a total length of17km, is recognized as the deepest and most complicated canyon in the world. The peaks on both sides of the river bank are 8 kilometers above sea level, and the average vertical drop of the valley is about 5 or 6 kilometers. The exposed rock layer of the mountain seems to have been severely distorted by a pair of big hands, twisting into folds and showing a series of textures. The dry monsoon rages along the valley, and the strong cross-flow continues to weather the rocks. The valley is full of dusty sand, gravel flying in the air, and sometimes landslides occur.
Kaligandaki River flows from one cliff to another, constantly hitting the wall, and the river washes away the mountain road and takes away countless rocks. The riverbed is getting lower and lower, the peaks are getting steeper and steeper, and the terrain is more complex and steep. The swift waterfalls run down among the strange rocks, washing the hard stones out of all kinds of strange shapes and forming the most beautiful and shocking sculptures. The desolate valleys and beaches are only scattered with rocks and dust, without a trace of modern civilization.
Two collisions before and after Himalayan movement formed the embryonic form of Kaligandaki Valley. The Kaligandaki River is constantly being eroded, and the violent monsoon is peeling off rocks day and night. The current and wind gradually made the mountains on both sides steeper and steeper, and washed the riverbed low and curved. Due to orogeny, wind erosion, desertification and water erosion, Kaligandaki Valley has formed a beautiful and spectacular plateau valley landform.