Tansa wildlife sanctuary is located in Wada, Shahapur and Mokhada Talukas of Thane district. The wildlife sanctuary at Tansa comprises the catchment area of Tansa Lake and the surrounding forests of Shahapur, Khardi, Vaitarna and East Wada Ranges in Shahapur Tehsil of Thana district. Tansa Lake is a perennial source of water to wild life in the sanctuary.
The land vegetation is southern tropical moist deciduous forest. The major tree species found in this area are Teak, Khair, Ain, Hed, Kalamb, Bibla, etc. Bamboo is also spotted in small patches over here.
This Wildlife Sanctuary hosts a wide range of species. There are around 50 species of animals and about 200 bird species in this area. Major wild animals are Panther, Barking Deer, Mouse Deer, Hyena, Wild boar, Leopard, Jackal, Four-Horned Antelope, Chital, Sambar, Hare, Common Langur, etc.