This dry zone sanctuary is mainly comprises with three lakes namely, Weerawila wewa, Debara wewa and Pannagamuwa wewa. Yodha wewa and Tissa wewa are another two lakes, which located little far away from above three lakes. All these lakes are act as ideal habitats for shorebirds.
Since they are situated close to south coast and Bundala National Park, which is the south most destination of the migratory birds of Sri Lanka lot of migratory birds also can be seen here. Egrets, Cormorants, Asian Openbill, White Ibis, Eurasian Spoonbill and many winter migrants can be seen here. Being the most prominent water resources in the area these tanks attracts considerable number of animals during the dry season. However the most common animal of the area is feral Buffalos.