Trek to Pasang Sonam Tso. Drive for 2 hours from Mechuka to Track junction (ITBP check-post at Yorlung). The walk to Pasang Sonam Tso is about 23km and takes approximately 7 hours. A tent is not needed, but you should be prepared to camp. You can find very basic shelter in the form of wooden huts at Ummeed Camp, Shastri Camp and Pasang Sonam Tso. Trail conditions depends on the climate. It’s best to spend at least two nights and three days to make it enjoyable. July to September are warm months, with longer days. It does rain, though, so be prepared for slippery slopes and leeches! October to December is the driest season. This means lower temperatures, dipping below freezing at night. Days are shorter, so plan your day’s walk accordingly. Snowfall is rare, but possible. In the peak winter months of January and February, you should be prepared for tricky patches through snow. The trail becomes more technical.