Camped here for Labor Day weekend. The koa is right next to Indiana Beach campground and we learned campers can use amenities at both sites. Koa has two nice pools (one large pool for kids and adults and smaller one for toddlers). The IB side has a large mini golf course ($8 for those > 5) and a nice arcade our boys enjoyed (also for a fee). The IB side has a very large spalsh pad, but was never open or on when we went over there. We stayed in a pull through spot with full hook up and it was mostly quiet. Quiet time is supposed to be after 11. The first night some people across from us were loud until after 1am. Reading other Google reviews it sounds like the quiet hours are not enforced and it can get very loud in the tent area. There is a nice camp store with essentials and ice cream. Lots of bathrooms around and the ones we used were clean. It was a nice weekend.
Also we had a very poor wifi signal. My husband had a hot spot from work and that was helpful. We were unable to get many channels on on tv with our antenna. If you have a satellite dish bring it.