Next 24 Mile Tampa Bay Marathon Swim is April 21, 2018https://community.usms.org/swimming/f/open-water-training-and-technique/25792/next-24-mile-tampa-bay-marathon-swim-is-april-21-2018The next 24 Mile Tampa Bay Marathon Swim is on April 21, 2018. Entry information is available at www.DistanceMatters.com or via email from the Race Director. Tampa Bay's marathon swim race is one of the world's longest, covering the length of Floridaen-USTelligent Community 12