If your trip to Fond du Lac, WI Airport (FLD-Fond du Lac County) is all locked in but your itinerary is looking a little empty, we can give you a few hints and tips.Take a little detour to Lakeside Park and leave the airport in your wake. It’s one of those sights you can’t leave off your itinerary. After that, head toward Children’s Museum of Fond du Lac, which is also worth a look around.