The entire Sikkim is a mountainous terrain and hills from an altitude of 280 meters (920 feet) to 8,585 meters (28,000 feet). The summit of the Kanchenjunga is the highest point at 8,534, but somehow climbing to this peak is not allowed by the state government as the local treat it as Sacred and Guardian. Some of the famous peaks that can be climbed after a special permit from the concerned authorities are Kabru, Kirat Chulior Tent Peak (7,365 mts) and Sinolchu (6,887 mts.

Also very recently the government in view to promote mountaineering tourism in the state has opened some interesting peaks like: Frey Peak 5830 mtrs. Chauringang, Mt. Tenchenkhang  6010 mtrs., Mt. Joponu 5603 mtrs, Lama Wangden, 5868 mtrs. Lachen Brumkhngse 5635 mtrs. Yumthang  The permits for the above mentioned peaks will be issued by the Home Department. The amount mentioned below has to be paid in Gangtok, Sikkim, after the permit is granted by the Indian Mountaineering Foundation, New Delhi
 
Expedition Royalties
The following royalties are levied for the expeditions.
For foreign expedition teams: US$350 per team of up to four members, US$ 500 per team of upto eight members and US$ 75 for every additional member.
 
Insurance
The following minimum insurance coverage is compulsory.
Expedition members: Rs. 3 lakhs per member
Camp crew: Rs. 1 lakh per person
Porters: Rs. 50,000/- per person
Animals: Rs. 20,000/- per animal
 
 
Essentials
The best season to climb in Sikkim is from May to October. Foreign expeditions have to book a peak along with a peak fee. The Indian Mountaineering Foundation (IMF) is the country's apex body that helps in organizing/ sponsoring mountaineering expeditions. It is mandatory for Expeditions in Sikkim to take a liaison officer from the Sikkim Mountaineering Association along with the liaison officer from the Indian Mountaineering Foundation. IMF functions as a clearing house for foreign expeditions and deputes a liaison officer to accompany foreign climbers. All requests have to be forwarded to IMF for clearance.

It is advisable to give at least a six month's notice before embarking on an expedition. Rescue operations during emergencies and accidents are looked after by the liaison officer.