Hey, Aqua...trip to the Ballard Locks is well worth it. Pick a nice sunny Sunday afternoon in June (hopefully there is at least one of those in June in Seattle ). Often they have weekend concerts there. You can walk across the locks to view the salmon migration through the observation glass (June is the heaviest period of the run). Have a picnic on the grassy hill next to the locks and watch a big procession of boaters trying to maneuver in and out of the locks...the inexperienced are under a lot of stress in tight quarters and you see a bunch of hilarious boating misadventures.