If you can drive a little way inland to Raeford, Paraclete has a great fun-jumper base as well as an otter, super caravan, and a CASA they break out on occasion. They are also open 7 days/week and have a 16.5 ft tunnel right down the road.
It's a bit over an hour and a half from Wilmington, but I regularly drive from the other end of the state to jump there.