Lake Muskoka is located between Port Carling and Gravenhurst, Ontario, Canada. The lake is surrounded by many cottages. The lake is primarily within the boundary of the Township of Muskoka Lakes, the southeast corner is within the boundary of the Town of Gravenhurst and another small portion around the mouth of the Muskoka River is within the boundary of the Town of Bracebridge. The town of Bala is located on the southwest shores of the lake, where the Moon River starts. Lake Muskoka is connected to Lake Rosseau through the Indian River and lock system at Port Carling. The lake is mainly fed by the Muskoka River, Lake Joseph and Lake Rosseau.

Gravenhurst is a town in the Muskoka Region of Ontario, Canada. It is located approximately 15 kilometres (9.3 mi) south of Bracebridge, Ontario. The Town of Gravenhurst includes a large area of the District of Muskoka, known to Ontarians as "cottage country." The town centre borders on two lakes: Lake Muskoka, which is the largest lake in the region, and Gull Lake, a smaller cottage-bordered lake. Another lake, Kahshe Lake, is situated 10 kilometres (6.2 mi) south of the town.