Courtesy of WOWSA, Huntington Beach, California.

The 2017 Desafío Nonthue (or the Nonthue Challenge) are two beautiful open water swims held on January 28th 2017 in the clear waters of Lake Lacar in San Martín de los Andes in the Argentine Patagonia.

For more information on the 7th annual 1.6 km and 4 km races, contact race director Ernesto Lambretch at or visit

Copyright © 2016 by World Open Water Swimming Association