Isalo National Park is a National Park in the Ihorombe Region of Madagascar. The park is known for its wide variety of terrain, including sandstone formations, deep canyons, palm-lined oases, and grassland. The closest town is Ranohira, and the closest cities are Toliara and Ihosy. A local guide is required for visitors entering the park, and guides and porters can be hired in Ranohira. Treks in the park can last from several hours to a week or longer. The park includes several natural swimming pools which are popular among tourists, and are excellent sites to see the Benson's Rock Thrush.
The main threat to this park comes from illegal wildfires set in the park. The wildfires limit the extent of forest and maximize grasslands used by cattle.
A total of 340 faunal species are known to inhabit the area, including 82 species of birds, 33 species of reptiles, 15 species of frogs and 14 species of mammals. Several different species of lemur are found in the park.
List of lemur species found in Isalo National Park