Montenegro

The lake is actually made up of 2 bodies of water, Veliko Jezero (Big Lake) and Malo Jezero (Little Lake) which are connected by a narrow strait that often dries up during summer. Row boats are available for hire in summer to explore the lake from a different perspective, and the lake is suitable for swimming in the summer months

There's a €5 entrance fee for entering Durmitor National Park, which includes access to the Black Lake. It is easily accessible from the town of Žabljak, which is about 3 km away. You can reach the lake by car, bicycle, or a pleasant walk from Žabljak