Near town Idrija, which is known for the bobbing and lace, there is an interesting lake, surrounded by steep rocks, water of changing colours and special energy. It is one of the karst phenomena in this area and worth the visit. Make sure you wear appropriate footwear and also to prolongate the hike towards river Idrijca and get a splash of cold water. 

Divje jezero looks like a peaceful water level, which gets crazy wavy and bubbly when the water is coming from everywhere and this is where it got the name from. The is wild in all aspects and not recommended to swim in. However, if you like flora and fauna, you will be surprised by many species finding their habitat in the area, also the trout and proteus anguinus. Beautiful and uncommon.