Hit up the downtown farmer's market on 104st for breaky, walk.
Head to the Leg grounds for Canada Day activities
Get on the High Level Streetcar and take it over to Old Strathcona
http://www.edmonton-radial-railway.a...ghlevelbridge/
Walk the Ave
Either take it back or walk back through the river valley, stop in Kinsmen for a water, play at the park, picnic.
Walk back through Leg grounds
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Other ideas:
Take the Edmonton Queen Riverboat for a ride
http://www.edmontonqueen.com/