Short-Course Endurance Swim Camp is a multi-tiered program serving the recreational, fitness and competitive swimmers. You have to be in shape to swim fast and the purpose of Endurance Swim Camp is to condition a swimmer so that they can swim their fastest. September through February Short-Course Season Swim Camps (15 - 20 Classes) lasting 60 - 75 minutes. Endurance Swim Camp is conducted on Monday's from 7:30pm - 8:30pm at Mehlville Senior High School, 3200 Lemay Ferry Road, St. Louis, Missouri beginning August 13, 2018 through February 25, 2019.