The Sela Pass at 4,170 metres is the dramatic gateway to Tawang, crossed on the road from Tezpur and Dirang. The summit of the pass is flanked by a small military cantonment and a cluster of stalls selling Maggi noodles and hot tea — a welcome stop after the climb through hairpin bends above the snowline.
A short walk from the road leads to Sela Lake, a glacial pool that sits just below the pass in a bowl of tundra. In winter the lake freezes solid and the pass is frequently closed by snow, sometimes for weeks at a time. The views across to the Himalayan ridges and down into the valleys on both sides are spectacular on a clear day. Allow at least an hour at the pass, and more if you want to walk along the lake shore.