It takes an hour and 15 minutes driving south on Kimball Rd.
About an hour and a half
About 1.5 hours assuming the border isn't backed up.
Toronto to Sarnia is about 2 and a half hours give or take 15 mins.
The motto of Sarnia is 'Sarnia Semper'.
It is 55.2 miles according to Google Maps.
From Manjimup to Walpole is a distance of 118km, and would take about an hour and twenty minutes to travel.
There is no direct highway, but you take Kimball south from Sarnia, until you get to St. Clair Rd (40) that should take you to the 401 highway leads to Windsor.
Google Maps estimates the driving time as 7 hours and 17 minutes.
( Sarnia= 72,125; Lambton = 128,204
Sarnia Imperials was created in 1928.
Sarnia Sting was created in 1994.
Sarnia Transit was created in 1974.