Home > National Historic Sites > Trent-Severn Waterway National Historic Site > Visitor Information > Lock Station Index > Lock 45 - Port Severn
Southeast Georgian Bay Chamber of Commerce Tel.: (705) 756-4863www.segbay.ca
Simcoe County - Huronia Tourism AssociationTel: (705) 726-9300 ext 220 or 1-800-487-6642www.county.simcoe.on.ca
Muskoka TourismTel: 1-800-267-9700www.discovermuskoka.ca
Southern Georgian Bay Chamber of CommerceTel: (705) 526-7884 or 1-800-263-7745www.southerngeorgianbay.on.ca
Port Severn is the northern gateway, and the smallest lock on the Waterway. Its 25.6 metre (84 ft) length limits the size of vessel that can through-navigate the entire Waterway. It is a quick boat ride from Georgian Bay Islands National Park. Lock 45 has large grounds for boater camping and picnicking. Boaters should exercise caution to the west of the lock where they pass under Highway 400, as the channel width is restricted. In periods of high water flows, boaters should be prepared to be buffeted by currents in the navigation channel below the lock.