Courtesy of WOWSA, Huntington Beach, California. Captain Tim Johnson, author of the History of Open-Water Marathon Swimming, explains why it feel warmer in the shallow water, “Because of the shallow depth, the sun’s rays penetrate the water and heat up the sand below so you have the surface water being heated by reflection and by […]

Captain Tim Johnson attempted to solve one of the most vexing problems in open water swimming. It has to do with swimming around curves in river swims. The question is which is faster: cutting the corner or swimming out with the faster current on the outside edge? For swims like the Manhattan Island Marathon Swim

When Captain Tim Johnson considers how best to advise an open water swimmer cross a channel, complete a circumnavigation, or compete in an open water swimming competition, he has a unique viewpoint on how best to plot a course. The life-long swimmer and Professor at Wentworth Institute of Technology in Boston defines an open water

Captain Tim Johnson, author of the History of Open-Water Marathon Swimming explains why it feel warmer in the shallow water, “Because of the shallow depth, the sun’s rays penetrate the water and heat up the sand below so you have the surface water being heated by reflection and by accumulated heat from below.” [Read more…]