SIOUX FALLS, SD (KELO) -- It's opening weekend for the City of Sioux Falls outdoor pools and aquatic centers. They're located at Drake Springs, Frank Olson, Laurel Oak and Terrace parks. Open swimming will go from 1 to 5 in the afternoons and 6:30 to 8 in the evenings. Spray parks at Hayward and Pio neer [...] ...read more read less