Family First
One of the best family camp grounds we've stayed at. Cabins and cottages are great (book early) nice RV sites. On-site food is really good compared to most.
Great Indiana State Park
Great walking trails, great for families with youngsters. Park activities and lots of trail walking. 25 mins away from South Bend/Mishawaka and 40 mins away from Elkhart and there RV Hall of Fame. Only electric at sites but they are big and roomy. Quiet and full of wildlife.