When my kids were younger, they loved going to the African Wildlife Safari. Mom didn't though, since my car windows would end up filthy! LOL!

As others have said, there is a ton to do on Put-In-Bay. (I know there are coupons available for the golf cart rentals too if you do a PIB search) They have caverns, a putt-putt, tons of gift shops, wineries and a beautiful beach by the lighthouse. We do not like to stay on PIB, since it gets a little wild at night (too much for teens IMHO!).

Kelley's Island is a lot more relaxed (more our style!). There are glacial grooves, shops, KI Winery and a beautiful park to hike in. You can rent golf carts here as well. If anyones into scuba diving, this is where to do it. There are several shipwrecks that easy to get to. I can't think of the restaurant we liked last year, but theres quite a few great restaurants too.