The river's length is 9 km.

The average length is 30-50 m and the average depth is 1.5 m.

The soil banks with a lot of willows.

Types of insects that live on Ribnik are many different sorts of Beatida (during the whole year), and many different sorts of Trichoptera, and ofcourse May flys (Ephemera).

This versatile world of insects makes possible fishing on a dry fly during the whole year.