Excellent for trekking, hiking, mountain biking, off road driving, river rafting, fishing and of course home to one of the best ski slopes in Europe, the range extends about 40 km northwest-southeast, and about 25 km wide. Most of the range is protected in the Pirin National Park. the range extends about 40 km northwest-southeast, and about 25 km wide. Most of the range is protected in the Pirin National Park. The mountain is named after Perun (Cyrillic: Перун), the highest God of the Slavic pantheon and the God of thunder and lightning. To the North, Pirin is separated from Bulgaria’s highest mountain range, the Rila Mountains, by the Predel saddle, while to the south it reaches the Slavyanka mountain. To the west is located the valley of the Struma and to the east of the Mesta Rivers.

