This is easy and fun and really worth it. If you aren't boating through the locks, you can walk along near the fish ladder, and see a Heron Rockery. They have several little grassy hill areas where you can watch boats go through the lock and picnic. The Heron are one of my favorites. They sit still hugged up close to the edge of the water to fish. Fun thing for kids and adults alike are to watch through the under water windows as the salmon make there way back to the spawning grounds!
This is one of the best easy hikes around the Sound! Always a good place for picnics, photos, meditation, and Owl and Eagle watching. Short walks, and longer loops. Bus users can access easily and if you drive there is always tons of parking in multiple parking lots. I go on the week days for more reflective walks.