Gyalshing or Geyzing is the capital of the district of West Sikkim in the Indian state of Sikkim. The town is connected to the capital Gangtok by a metalled road. Geyzing is also connected to the West Bengal towns of Darjeeling and Kalimpong via Jorethang.

A few kilometers north is the town of Pelling. The town has a large Nepali population, and the Nepali language is the predominant language of the region. The town is situated at an altitude of about 6,500 feet (1,900 m). The town enjoys a temperate climate for most of the year and snow sometimes falls in the vicinity.

Near Geyzing is the ancient town of Yuksom, the ancient capital of Sikkim built in 1642. Other attractions include Pemyangtse Monastery built in 1640, reputed to be Sikkim's oldest and Khecheopalri Lake which as legend has it not a leaf is allowed to float on the surface. The town is the base for trekking in the Himalayas and professional expeditions to Mount Kanchenjunga.

The best time to visit the destination is from October to February.