Lake Cerknica is a unique intermittent lake located in Slovenia. It is known for its seasonal changes, filling with water in the spring and drying up in the summer. The lake covers an area of about 26 square kilometers when full, making it one of the largest lakes in Slovenia. The lake is part of the Cerknica Polje, a karst field that supports diverse ecosystems. It is home to various plant and animal species, including migratory birds. The surrounding area is popular for outdoor activities such as hiking and birdwatching, attracting nature enthusiasts year-round.