Lake of Bays is a large lake in the District Municipality of Muskoka in Central Ontario, Canada. It is located almost entirely in the Township municipality of Lake of Bays, which is named after the lake, with the exception of the southwest arm of the lake which is in the Town of Huntsville. Ontario Highway 35 runs north and east of the lake. Port Cunnington is a community established on a peninsula reaching out deep inside the lake. Other settlements on the lake shore include Dwight, South Portage, Baysville and Dorset.