In 1905, an approximately 1 km long Starpiņupīte [lv] was excavated, which connects the lake with Gulf of Riga.

By opening these locks in turn, the movement of passing water inhabitants between the sea and the lake basin was ensured.

Kaņieris, which is exceptionally rich in waterfowl, has status of an Important Bird Area and has been protected since 1964.

Western part of the lake - Slocene estuary district - is a nature reserve area.

Boat rental in Andrejsala, bird watching tower is on Nut Island.