Some ideas for things to do at Kelleys Island:
-Relax and unwind
-Birding
-Fishing
-Visit the Kelleys Island State Park beach
-Hike a trail or camp overnight at Kelleys Island State Park
-View the Glacial Grooves
-View Inscription Rock
-Visit the Kelleys Island Winery
-Visit the Kelleys Island Brewery
-Visit the Kelleys Island Museum
-Shopping
-Miniature Golf
-Enjoy an ice cream
-Tour the island via golf cart or bike
-Visit with friends over cocktails
-Enjoy live music on the weekends
-Hop over to Put-In-Bay
-View the sunset


See what Health.com has to say about Kelleys Island:

http://living.health.com/2009/06/18/americas-healthiest-beach-lake-getaways/4/