Help a reader swim on a budget

I received an e-mail from a reader looking for some frugal swimming options for her family this summer in the Rolesville/Wake Forest area. Any suggestions to help Brittney?

"We don't live in a neighborhood that has a swimming pool and our town pool has such limited hours we can't go as a family. We did try the above ground blow-up pool but the chemicals and time made it more of a burden than it was worth. Any ideas for swimming fun in the Wake Forest/Rolesville area? Also if there are any neighborhoods that have open membership discounts I'd love to know about them! - Brittney"