Chopta valley lies sprawled at an altitude of 4023 m on the way to Gurudongmar Lake. Despite of being a tourist hotspot, Chopta valley is able to maintain itself as a pristine and tranquil destination. The valley is frozen during the winter and provides opportunity to walk over the frozen rivers. With each turn, each valley, each rivulet trying to outdo the other in the scenic beauty that it offers. An adventurous trek through Chopta valley leads to Muguthang valley at an altitude of 15500 ft, another unseen destination in the greater Himalayas.
Kala Pathar – ahead of Thangu valley check post lies the famed Chopta valley and the mighty Kala Pathar the black rock or black mountain landscape here similar to that of Ladakh with almost no vegetation and as the rocks are mostly moraines. The entire land is covered with snow for six months in a year with the average altitude of view point at 4200 m
Muguthang - At a distance of 19 km from Chopta is the Muguthang, a mountain valley situated at an elevation of 14,850 feet and can be reached by trekking from the Chopta Valley. This valley is normally uninhabitable except for some occasional settlements by Tibetan nomads for grazing their Yaks. Muguthang is also popular for the annual Yak race which takes place during the festival of DrukpaTeshi.
Lhonak Valley is trans-Himalayan grassland in the exposed river valley of Goma Chu in northwest Sikkim, with boggy marshes, glacial lakes, barren scree slopes and glaciers. High alpine valley of Lhonak is only inhabitable for rare high altitude ruminants and their predators. Lakes and marshes here are used as stopover sites for migratory water birds.