Courtesy of WOWSA, Morelos, México.
Maratón Contra Corriente Las Estacas is a unique 1 km upstream river swim held in the State of Morelos near México City. Participants swim upstream against the river currents in Rio de Las Estacas that is within a national park of Mexico.
The river has also been used for training for channel crossings. Back in September 2013, Triple Crowner Christian Ayala completed a 14-hour training swim in preparation for his English Channel crossing that he completed in 17 hours 38 minutes.
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