Courtesy of WOWSA, Huntington Beach, California.

In the rough water conditions of Playa del Carmen, Mexico when stiff winds caused plenty of surface chop and more than a few whitecaps, it was a reminder on how important it is for open water swimmers to have a strong core.

A strong core enables you to swim in a streamlined and balanced manner despite turbulent conditions.

Swimmers like Ferry Weertman [shown together with the Dutch national team coach Marcel Wouda] has a very strong core. It is apparent that the rougher the conditions are, the tougher – and smoother – he becomes relative to his competition.

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