It lies in the highest part of the Pirin Mountain.
Forests cover 60% of its total area. Trees between 280 and 1000 years old have been declared natural sites, the oldest one being the 16 meter high Baikousheva white fir which is 1200 years of age.
The Pirin National Park has exceptionally rich and varied flora and fauna. This is the kingdom of alpine flowers. The Pirin edelweiss, the best known of them, grows on sheer rocks leading to Mount Vihren (2914 m).
Glacier lakes, caves, water falls and steep peaks form part of the magnificent scenery.
Pirin is one of the most beautiful Bulgarian mountains.