Ostritsa National Park

Five kilometers to the south of the town of Pernik is the Ostritsa Reserve, situated in the central part of the Golo Bardo Mountain. It has an area of 134.6 hectares and includes the Ostritsa Peak (1146 meters above sea level) and its slopes - the ravines Belite kladentsi, Shiroki dol and Ribna voda.

In the reserve, sprout plantations of two subspecies of hornbeam, and manna-ash. The flora consists of 358 species and 4 subspecies, belonging to 212 sorts of genus and 56 families. In spite of its small size and surface it covers, the reserve contains one tenth of Bulgaria's floral wealth.