Sad news for Bismarck pool-goers: Bismarck Parks and Rec announced that outdoor pool season will soon be ending for the 2026 season. Because its college and high school workforce is heading back to school, the pools will close over the next few weeks. Closing Dates For Bismarck PoolsThe last day for outdoor pools is as follows:Friday, Aug. 7 – Wachter Aquatic ComplexSunday, Aug. 9 – Hillside Aquatic ComplexSunday, Aug. 16 – Elks Aquatic CenterIt's hard to believe that summer is almost over. One sure sign that the summer season is wrapping up around Bismarck-Mandan is our local pools closing up for the season. The Pool Pooch Party will still be held on Saturday, Aug. 8, at Wachter Aquatic Complex.