Entry to North Sikkim is only possible on a guided tour, and a travel permit must be organised in Gangtok 1-2 days prior to travel. You would need a copy of your photo id card and 2 photos to obtain the permits for North Sikkim. All travel is by 4-wheel-drive as the roads are subject to frequent landslides. The terrain is very difficult and cold. Make sure that your tour operator is giving you cars in good condition. Mostly Boleros and Scorpios are the safest bet although Sumo Victas also ply. Nevertheless, the journey into the valley is stunning.
