There are numerous blueberry festivals and events across northern Ontario this summer. Aside from the Greater Sudbury 32nd Blueberry Festival (http://www.blueberryfestival.ca) there are also events such as The Sioux Lookout 35th annual Blueberry Festival, August 4 to 13, (https://www.blueberrybert.com) and Esker Lakes Provincial Park also hosts a blueberry event in August (https://www.ontarioparks.com/park/eskerlakes).
Check out local towns and websites wherever you are travelling this summer to find an event near you.