The legendary Vran Mountain and the stunning Čvrsnica have nurtured in their bosom, at a height of 1200 m above sea level, the fertile valley Polja, with Blidinje Lake nestled in it, as a beautiful blue eye in the head of these mountain beauties.
This lake is the largest natural lake in Bosnia and Herzegovina and it constitutes the geomorphologic nature monument that the park was named after. The area of the lake varies from 2.5 to 6 km², with a relatively small depth, from one to maximum four metres. The lake itself lies between Vran and Čvrsnica mountains, at the bottom of Dugo polje and at a height of 1184 metres above sea level. Given its surreal natural beauty, Blidinje Lake perfectly complements the landscape of Blidinje Nature Park.