Share 'Rainy Day Ideas for Traverse City, Petoskey, Charlevoix and Leelanau'

I'm looking to help some of my friends put together a list of things to do with kids on a rainy day. I remember my family always waited for a rainy day to hit the museums. We'd be entertained for a couple hours and usually the rain wouldn't last all day. What's missing from my (all too short) list? Pt. Betsie Marine Museum Children's Museum in Traverse City Guntzviller's north of Elk Rapids Nor...