Hollin Hills Pool 1602 Paul Spring Rd, Alexandria, VA22307 The Hollin Hills Pool is located off of Paul Springs Rd. in Hollin Hills. Hollin Hills Pool services the Hybla Valley…More community with a clean and fun open-air pool environment fit for adults and children alike. This pool offers a seasonal membership that varies depending on size of group purchasing, there is also a guest pass, and there are permitted three child guests before 1pm for free. The pool closes Labor Day/Mid-September and opens Memorial Day weekend, weather permitting. The Hollin Hills Pool also has a playground and volleyball net set up for fun and games. During the pool season, it also offers adult-only swim times during the night.