Blidinje Lake, located in Blidinje, between Tomislavgrad and Posušje, is the largest mountain lake in Bosnia and Herzegovina. It is protected geomorphological monument in the Nature Park Blidinje. It is located at an elevation of 1,185 metres (3,888 ft) above sea level and is 2.5 kilometres (1.6 mi) long and 2.1 kilometres (1.3 mi) wide. Maximal depth of the lake is only 3 metres (9.8 ft), while average depth is around 0.5 metres (1.6 ft).The lake area varies from 2.5 to 6 km2, and the average depth is about 1.9 m.