Are you looking for an activity on a wet and drizzly day? Explore the interesting displays at Higgins Museum. There's always an opportunity to learn a few new things.
Situated in Okoboji, this museum is well worth including on your itinerary. But you'll find tons more to explore in this area. 'Boji Splash Indoor Waterpark Okoboji, Arnolds Park, and East Okoboji Lake aren't too far from Higgins Museum.