Kozjak is the largest and deepest lake in the park (covering approximately 82 ha, with a depth of up to 46 m) and forms the natural boundary between the Upper and Lower Lakes. Shortcuts between the two parts of the park are organized by boat sailing across this lake. The calm turquoise surface of the lake, surrounded by forest, leaves a powerful impression.
The boat ride on Lake Kozjak is included in the park entrance ticket price — there is no separate charge. The boat operates regularly throughout the entire park opening hours.
