This is probably the wilderness trek in the Annapurna region to explore hidden valley and challenging high passes such as Masokanto La (5099m), Kangla pass (5200m) & Tilicho Pass (5230m) with beautiful Lake Tilicho. The trail starts over the Marshysangdi river to the steep portals of the Nar Phu valley that opens up to a spectacular view of high snow peaks, ancient villages and high altitude grazing settlements. Closed to trekkers untill late 2002, the government of Nepal has now opened it for the western travelers and explorers to visit this non touristry and untouched areas of this high alpine valley.