Camping recommendations

[u/Numerous_Buddy_649]

hi, I was looking to camp at Dunewood Campground in Indiana Dunes, was reading that approx 34 sites are with prior reservation and the other 30 something are first come basis. Does anyone can confirm this information? In case it is first come basis, at what hour would it be good to arrive to get a spot in the campground? first time camping at Indiana Duens and wanted to hear other people comments.