 the summer season was held at Sioux Park back on June 12th and the final hydrant party will be held from 1 to 3 p.m. at the Roosevelt Swim Center parking lot on August 14th but keep in mind this one will be July 10th at College Park from 1 to 3 p.m. in case of inclement weather the event will be cancelled just keep and keep a check on the Rapid City Parks and Recreation's Facebook page for updates