My 17 yo is doing a week long camp at Purdue. I will be dropping him off on a Sunday afternoon and picking him up on a Friday afternoon. This is 500 miles from our home. Doing two roundtrips seems crazy. DH will stay at home and work. I think I'm going to take 14 and 11 year olds with me.

17YO is pretty set on Purdue as his school, so I don't think I want to stay in West Lafayette; even if there was enough to do for 4 full days there.

I'm eyeing Indianapolis. I don't want to add a bunch of miles. We're actually going to Chicago a couple weeks before.

Any suggestions for activities in Indianapolis for the three of us? Or other cities I should consider in this region?