The Waterfront Walkway runs along the Yukon River from town, south past the Robert Service Campground, to the Yukon Energy hydroelectric dam, top right. The bridge crosses the river near the campground. The "longest wooden fish ladder in the world" is at the dam. It only runs during salmon spawning season - dry when I was there. The dam can be visited by car on the east side of the river also.
AlCan Hwy ~ Whitehorse YT