The drive from Harrow to St. Thomas is approximately 160 kilometers. You will take Highway 401 East and exit at Highway 4 toward St. Thomas. This route is very direct and takes about 1.75 hours. St. Thomas is known for its railway history.
Total Distance: 160 km driving distance; 140 km straight-line air distance.
Highway 4 can be busy; watch for traffic.
Summer for the railway museum.