Lake Harku
 Lake Harku (Estonian: Harku järv; also known as Lake Haabersti Loodjärv and Lake Argo) is a 162.9 ha (403 acres) lake on the western border of Tallinn Estonia. It has an average depth of 1.6 m (5.2 ft) and a maximum depth of 2.5 m (8.2 ft).