Lambly Lake is located approximately 36 kilometres (22 miles) northwest of Kelowna, British Columbia.

It is reached by taking Westside Road past Bear Creek Provincial Campground to the Bear Main forest service road, then turning left and following the road to the 24-kilometre mark, where the lake entrance is well marked.

The lake sits within the Powers Creek watershed and serves as one of several storage reservoirs operated by the City of West Kelowna to support water use in the Westbank Service Area.

Water collected here during freshet is released to augment flows in Powers Creek through summer, fall, and winter. A recreation site at the lake offers 17 campsites with tables and pit toilets, accessible generally from mid-spring through mid-fall.

The lake supports rainbow trout and yellow perch, making it a draw for anglers visiting the area.