Adventure sports
For the outdoor buff, Sikkim offers a wide circuit of trekking routes. River rafting on the Teesta and the Rangit rivers is also an option. Recently, helicopter flights to Mt. Khangchendzonga have also been started from Gangtok.

Some popular trekking routes:
a) Tashi view point to Tinjure trek: ex- Gangtok.1 day.
b) Hilley-Varshey trek: West Sikkim. 2 days. A fabulous trek in a forest of rhododendrons. Hilley is at 9,000ft and Varshey at 10,100ft.
c) Damthang-Tendong trek: Ex-Damthang. One day trek through the Tendong Forest Sanctuary to Tendong (8,500ft).
d) Rabongla-Maenam Bhaledunga Trek: Ex- Rabongla. One day. A great one day outing through the Maenam Wildlife Sanctuary to Maenam at 10,600ft.
e) Yoksom-Dzongri trek: Ex-Yuksom. 4days. A terrific, moderately difficult trek, through the Khangchendzonga National Park to Dzongri (13,000ft) from where you get to see fabulous views of Mt. Khangchendzonga, Mt. Pandim and the Kabur Dome.
f) Yuksom-Goechala trek: Ex-Yuksom. A tough 9 day trek via Dzongri to the Khangchendzonga base camp at Goechala (alt. 16,500ft).