I'm in the Columbus, Ohio area. My family got certified in anticipation of a vacation, and then wound up doing the central Ohio quarry tour last year and looking forward to getting in the water again soon. Circleville Twin quarries is an easy, friendly place, and we also really liked going to White Star. We dove Lakeview RV park and Northpoint Quarry once each -- also fun. Someone put a lot of work into Northpoint. It has a nice setup with lots of stuff in the water and it is cheap ($10 I think). The only downsides to Northpoint were that the visibility wasn't great and there are no onsite air fills. Have not been to Gilboa or Natural Springs yet, though.
Anyway, if anyone wants to PM me to try to do some quarry diving, feel free.
Anyway, if anyone wants to PM me to try to do some quarry diving, feel free.