Swimming beaches are found at Brown’s Lake—Bigelow Park and Little Sioux Park. ***Brown’s Lake-Bigelow Park swimming beach will remain closed for the 2020 season due to construction. *** Life guards are not present. Swim at your own risk. Swimming beaches are open Memorial weekend through Labor Day. Hours: Brown’s Lake-Bigelow Park 11 a.m. – 6 p.m. (Closed due to construction.) Little Sioux Park 11 a.m. – 8 p.m.