The area of the mirror is 51 km². The greatest depth is 129 m. The Dobson and Hopkins rivers flow into the lake. Catchment area: 1198 km². Runoff takes place across the River Ohau. The lake is surrounded by forests - Ohau, Temple, Hopkins, Ahuriri, Huxley and Dobson, in which hiking trails are laid.
It is a popular place for fishing and recreation among tourists.