Each Canadian year, World Brotherhood Camporee is held at Riverside-Cedar Campground just east of Morrisburg, Ontario. It’s a full-service camp with spacious campsites, a centrally-located area for events and activities, plus a beach. A map of the camp is available here. Most activities take place in the central area, sites will be assigned in other sections on a first-come first-served basis.
Below is a Google map with starting points set at Kingston & Ottawa, ON, and Watertown & Syracuse, NY.