If you are just looking for a place to park the RV that has full service sites I believe Alton RV Park would work. Now this is basically a gravel parking lot so nothing fancy but it is always full with people who live a few months in Ohio and then move south for the winter. This place is located on the west side of Columbus but I-70 & I-270 are close by. If you want some nature to visit while here Prairie Oaks and Battle Darby Metro Parks are close by so you can do some hiking/fishing. Battle Darby has Biason at the park that you can see on one of their trails.