The Pirin Mountains are a mountain range located in southwestern Bulgaria. They are part of the larger Rila-Rhodope mountain system and are known for their stunning natural beauty, featuring rugged peaks, deep valleys, and numerous glacial lakes. The highest peak, Vihren, reaches an elevation of 2,914 meters, making it the second highest in Bulgaria. The Pirin Mountains are a UNESCO World Heritage site, recognized for their unique biodiversity and rich ecosystems. The area is home to various plant and animal species, some of which are endemic. Popular activities in the region include hiking, skiing, and wildlife observation, attracting nature enthusiasts and adventure seekers alike.