King's Highway 6, commonly referred to as Highway 6, is a provincially maintained highway in the Canadian province of Ontario. It crosses a distance of 480 km (300 mi) between Port Dover, on the northern shore of Lake Erie, and Espanola, on the northern shore of Lake Huron, before ending at the Trans-Canada Highway (Highway 17) in McKerrow. Highway 6 is one of two highways in Ontario (the other being Highway 33) broken into two segments by a ferry. The Chi-Cheemaun ferry serves automobile traffic, connecting Tobermory with South Baymouth between May and October.