Chris Bertish enters the English Harbour at Antigua on Thursday, a flare trailing behind him in celebration. He paddled more than 4,050 nautical miles to reach this point. Courtesy Brian Overfelt for The SUP Crossing hide caption

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Courtesy Brian Overfelt for The SUP Crossing

South African surfer and sailor Chris Bertish practices in his 20-foot stand-up paddleboard, just days prior to his launch on Tuesday. Alan van Gysen/Courtesy of The SUP Crossing hide caption

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Alan van Gysen/Courtesy of The SUP Crossing

American surfer Garrett "GMAC" McNamara rides what could be, if confirmed, the biggest wave conquered in history as a crowd watches Monday in Nazare, Portugal. To Mane/Barcroft Media /Landov hide caption

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To Mane/Barcroft Media /Landov