Nothing compares to the thrill of taking the plunge in the great outdoors mountain lake in Slovenia.
Lonely Planet wrote:
“The Julian Alps offer top-class swimming, including the lovely-but-costly Lake Bled lido. However, travel down the road to Triglav National Park’s Lake Bohinj and discover wilder scenery for free. The Sava Bohinjka River provides a chilly thrill for flow-swimming fans.”