Fairfax County residents and RECenter members are eligible for an admission discount.
Scott Vogel reviewed the rec center's indoor water park for The Washington Post:
For 10 minutes each hour at Cub Run, all children are asked to leave the 4,860-square-foot leisure pool. During these respites -- meant to encourage the little ones to take bathroom breaks -- you get a glimpse of what the world could be like. The glee subsides, the water cannons and tumble buckets fall silent, and the only sound you hear is a few intrepid parents padding up the tube slide stairs. The kids-free quality time comes at a price -- namely the sight of a few hundred mad-faced children following your every move -- but it's all worth it for a spectacular, 205-foot-long ride through an enclosed tube that exits and then reenters the building before gently emptying into a trough. Of equal interest and greater speed is the 20-foot-high giant corkscrew that dominates the facility, as well as a miniature version for the kids when big people time ends. To catch your breath, try bobbing along the brief lazy river channel or plunging into the vortex, which provides a bowl's eye view of the toilet-flushing experience.
Slides open Monday and Wednesday from 4-6 p.m.; Tuesday, Thursday and Friday from 4-8 p.m.; and Saturday and Sunday from noon-8 p.m.