pk,
It's about 250 miles from Indy to the lake Michigan shoreline west of Grand Rapids, MI or about 5 hours driving time. Vist one of the over 2 dozen CG's or state parks cgs in this area and you'll be back like the millions of other RV'ers and visitors do every year after year. So much for kids and entire families to do and not spending a dime if you don't want to or can't.
Vast hiking trails, hundreds of miles of paved safe bike trails, 29 other parks in the area, gorgeous huge pristene beaches, swimming, fishing, huge real sandunes to climb or play on, 7 mile long wide boardwalk along the large Grand River and linear park from the long piers out into Lake Michigan to walk on with clean restrooms and scores of benches along the way, Approx 7/10 mile from the beach to downtown, ships and pleasure boats galore, free daily music entertainment, water sports and kids water parks (adults use them too!), museums, skateboard parks, huge musical fountain performances nightly, very friendly and safe for anyone of any age 24 hrs/day, BB courts, tennis courts, many festivals, farmer's market, much more. ALL FREE! AND don't need to drive as it's walkable even with younger kids. Of course, if desired, you can hop on one of the open air trolleys for I think it's $.50 kids and $1. for adults and ride as long as you want!
Then there's plenty of outdoor cafe's and restaurants if hungry and/or ice cream/snack places and a very clean and prosperous downtown with nice stores to explore or windowshop for both kids and adults, miniature golf, etc. Yes, very clean modern restrooms there also. Not free but you control what you spend. Yes, usually do need CG reservations for waterfront cgs and as early as possible but not for every area CG.
Of course, you can't control the weather and so true this year so far has been the worst we've seen in our 71 years but it will change back to normal as it always does. In downtown etc, the average is 80 daytime and 60 during the night with lots of sun and the town is designated as "Tree City USA" as it's protected by the tall sandunes along the shoreline. Gentle cool breezes of approx 72 degrees are noramally constant all summer long as that's what the water is and A/C is not needed in our homes or in RV's.
There's the huge Michigan Adventure Amusement Park roughly 17 miles north if that's an interest.
Very informative!
http://www.visitgrandhaven.com
Also look at the top 10 on the site.
The site only lists part of what's actually here but sure gives the basics.
You'll see why we live here and have for 71 years and why it's constantly growing and prosperous.
5 hours of driving takes you to a true very pleasant clean affordable RV, boating and resort area but beware as your kids will be bugging you to go back constantly but that's not all bad because you'll want to also!
A superb CC LB 4X4, GM HD Diesel, airbags, Rancho's, lots more
Lance Legend TC 11' 4", loaded including 3400 PP generator and my deluxe 2' X 7' rear porch
29 ft Carriage Carri-lite 5'er - a specially built gem
A like new '07 Sunline Solaris 26' TT