Hammer Lake is a hammer-shaped lake in Ontario, Canada located between White River and Wawa. Activities at Hammer Lake include canoeing, fishing, blueberry-picking, swimming, and picnicking. Loons, beavers, and chipmunks are common, and moose are occasionally sighted as well. Mosquitoes are abundant. There are many privately owned cabins around the lake which have neither electricity nor running water. Inhabitants typically obtain water from the lake and bring in supplies from the nearby towns.