 The road was fully paved by 1973, making this road the second last Kings Highways in the province to be paved in its entirety (with the last being Highway 129).During the spring of 1980, the entire length of Highway 68 was renumbered as part of Highway 6.The two discontinuous sections of Highway 6 are linked only by a privately operated ferry, MS Chi-Cheemaun, which crosses Georgian Bay daily from May to October between South Baymouth and Tobermory.