Located on the west Sikkim, this sanctuary is major tourist attraction in Barsey region. Established in 1998, it covers an area of around 104 sq. km. Out of the 1000 varieties of Rhododendron, the sanctuary alone houses 600 varieties. Besides being rich in flora and fauna, the sanctuary is well known for embracing rare Himalayan species of Red Panda and Black Bear.
The most commonly seen wildlife in the sanctuary includes Leopard, Leopard Cat, Marbled Cat, Himalayan Yellow Throated Marten, Himalayan Palm Civet, Cannidae Wild dog, Indian Fox, Jackal, Himalayan Black Bear, Wild Boar, Red Panda, Barking Deer and a lot more.
Varsey Rhododendron Sanctuary can be accessed through road via Hilley, Detam or Soreng from Geyzing. One can trek from Hilley to reach the sanctuary. The best time to visit this sanctuary is during the months from March to April.