The Tsum Valley was opened to tourist in 2002 AD and becoming a popular side trip to the Manasalu Circuit Trek though Plenty of trekkers have been doing Tsum Valley only. The valley can be divided into three distinct zones. Lower part, entry region is wild, forested and steep-sided, as one would expect of a lost world. Upper Tsum valley is generally gentle upward slop going north. The valley here is quite wide but is hemmed in by amazingly sheer-sided cliffs. The main populated zone of Upper Tsum Valley is found in this fertile zone where potatoes, buckwheat, winter wheat and barley are grown along with mustard. The fields are separated by dry stone walls for protection against the wind. Walnut and Apple trees prosper in the climate of the valley. Higher up beyond Nile and Chhule is the Tibetan region, where the landscape is dry, arid and reminiscent of the Tibetan plateau, with barren hillsides and soaring strangely eroded mountainsides. The Valley now swings north and the trail climbs a rough trail through jungle and then on to grassy hillside with stone slabs. Tsum Valley also a Buddhist zone of Nepal, The inhabitants participate in all the regular Buddhist festivals; Buddha’s Birthday, Losar, Guru Rimpoche’s Birthday and various Cham dances. All the main monasteries have a festival in the early monsoon called Gumba Dhupa Chhe Ji. The riotous Dharchyang horse races are held in Upper Tsum Valley in late September into October. Thus when it opened to tourist in 2002, The Tsum Valley region has been one of the Nepal’s premier trekking destinations.