From Toronto/Kingston: Hwy-401 east to approx. 10 km past Cornwall to Hwy-27/Summerstown Station (exit 804). Proceed north on Hwy-27 approx. 6 km to County Rd. 19 (stop sign). Turn right and proceed approx. 5 km to Williamstown.
From Ottawa: Hwy-417 east to Hwy-138 (exit 58). Proceed south on Hwy-138 approx. 29 km to County Rd. 18 (traffic light)corner). Turn left on County Rd. 18 and proceed east approx. 19 km (through Martintown and past McCuaigs Corners) to County Rd. 19. Watch for the sign pointing to Williamstown. Turn right on County Rd. 19 and proceed south approx. 6.5 km to Williamstown.
From Quebec: Hwy-20 west to Hwy-401. Continue west on Hwy-401 to County Rd. 34/Lancaster (exit 814). Proceed north on County Rd. 34 approx. 0.75 km to County Rd. 17 (Pine St). Turn left on County Rd. 17 and proceed west approx. 7 km to Williamstown.