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.”

Shallow waters are definitely warmer than water with depth unless they are feed from an enclosed bay or river.

In deeper water, you lose the sand blanket that has absorbed the heat. Now the same heat penetrates the ocean with deeper water, but because the rays penetrate to various depths (you lose the red wavelengths first) the heating is dispersed over a much wider area thus causing the cooler temperature.”

 

 

Copyright © 2012 by Open Water Source


 

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Open Water Swimming Race Calendar

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Tackling The Ocean
Retired NFL Defensive End and Pro Bowl superstar, Marcellus Wiley, conquers his fears of swimming in open water at the OptimusSport Distance Swim Challenge, Santa Monica, CA

 


 


 


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An Inspirational Cause… A Successful Event



SWIM ACROSS AMERICA, LONG BEACH
With the powerful cause of making waves to fight cancer, the inaugural Swim Across America Long Beach event was both inspirational and successful.

THE DRAMA OF THE SPORT
Before he came out of the water, Craig knew that a certain question had to be answered. It wasn’t a question about his middle name or anything like that. It was much more profound. It was a question posed by himself, a question that only he could answer for himself. When Craig was able to answer that question, Hank embraced him and congratulated him on finishing the 5K with dignity.


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