From Highway 401 at Cambridge, go south on Hwy 24/Hespeler Rd as it turns into Water St at Hwy 8. Continue south on Water St to Concession St/Road 97

Turn right on Concession St/Road 97 and go west as it turns into Cedar St/Road 97 at the bridge, and intersects St. Andrews St/Road 75

Turn left on St. Andrews St/Road 75 and head south to Glen Morris Rd 28

Turn left on Glen Morris Rd 28 and go east to East River Rd 14

Turn right on East River Rd 14 and go south to Blue Lake Rd 35 (unsigned and strewn with graval)

Turn left on Blue Lake Rd 35 and head east as it crosses Highway 24 and becomes Highway 5, to St. George Rd 13

Turn right on St. George Rd 13 and go south to Harrisburg Rd 33

Turn left on Harrisburg Rd 33 and head southeast to Grovernor's Rd 99. A left turn takes you over the Sulpher Spring Rd tour