The Nanda Devi Sanctuary is indeed a unique geographical feature. A ring of peaks that are connected by massive rock walls that go no lower than 17,000 feet form this heavenly, yet impenetrable sanctuary. The only exception point is the area where the Rishi Ganga drains this great basin. It is then no doubt that trekking here is a unique and unparalleled experience altogether.
Since this is one of the most challenging treks in the world, several acclimatisation bases are a must. The actual trek to the Nanda Devi East Base Camp starts from Lilam, which is about 18 kilometres away from Munsiyari. From Lilam, the trail leads to Bugdiar, Gori Ganga, Martoli, Milam Village, Lwani and finally the Nanda Devi East Base Camp