Summer in Kalamazoo offers many options: biking, canoeing, hiking, or camping. Lake Michigan is a short drive (or a long bike ride) away. Lots of small towns (and bigger ones) offer summer festivals.
Summer events near Kalamazoo
June 1-3 Cerulean Warbler Weekend Hastings
June 2 National Trails Day
June 9-10 Michigan Free Fishing Weekend
June 14-16 Harborfest South Haven
June 14-16 56th Annual Waterfest Three Rivers
June 16 Breakfast on the Farm free tickets Scotts 10 a.m. - 2 p.m.
June 30-July 1 Balloon Festival Battle Creek
July 11-15 Kindleberger Summer Festival Parchment
July 21 Southwest Michigan Bicycle Expo Kalamazoo 10am-4pm (county fairgrounds)
August 6-11 Thornapple River Expedition Potterville to Ada
August 9-12 Blueberry Festival South Haven
West Michigan Summer Weekends
Events at Kalamazoo's Arcadia Creek Festival Place
Event listings from Discover Kalamazoo
West Michigan Weekly has a list of W. Michigan bike trails and scheduled bike rides
Gazelle Sports' calendar of West Michigan Races and Running Workshops
League of Michigan Bicyclist's Michigan Ride Calendar
West Michigan Coastal Kayaker's Association Event Calendar
Outdoor Athlete has lists for Michigan running, biking and triathlon events.
Southwest Michigan Land Conservancy volunteer workdays
Pure Michigan has a list of June events throughout Michigan and August events