Lake Mir is situated in the southwestern part of the Nature Park Telašćica. It lies in a narrow area of land between the open sea and Telašćica bay. The lake is approximately 900 m long and 300 m wide, while the maximum depth is 6 m. The shores of the lake are rocky and low.
Swimming in the lake is permitted. In the hieght of summer the temperatures can reach 33º C. The lake is colder than a coastal sea in the winter due to the shallowness of the lake and warmer during the summer.
The area surrounding the lake is home to the park’s heard of semi-feral donkeys. Walking around the lake covers a distance of around 3 km.