A flowrider competes on an artificial wave, during the Flow Tour 2016 in Santiago on October 22, 2016. Artificial waves are created by powerful pumps that throw thousands of liters of water against a wall. The size of the wave can be regulated to suit the skills of the surfer and can reach a height up to three meters. (Photo by Martin Bernetti/AFP Photo)





A surfer rides a wave off Praia do Norte (North Beach) near Nazare, central Portugal, on October 24, 2016. (Photo by Francisco Leong/AFP Photo)





A drone flies above World Surf League World Title winner Hawaian surfer John John Florence during the final heat of the Portuguese stage of the World Surf League championship at Supertubos beach near Peniche, central Portugal, on October 25, 2016. (Photo by Francisco Leong/AFP Photo)





A flowrider competes on an artificial wave, during the Flow Tour 2016 in Santiago on October 22, 2016. (Photo by Martin Bernetti/AFP Photo)





A surfer rides a wave off Praia do Norte (North Beach) near Nazare, central Portugal, on October 24, 2016. (Photo by Francisco Leong/AFP Photo)





A surfer rides a wave off Praia do Norte (North Beach) near Nazare, central Portugal, on October 24, 2016. (Photo by Francisco Leong/AFP Photo)





A flowrider competes on an artificial wave, during the Flow Tour 2016 in Santiago on October 22, 2016. (Photo by Martin Bernetti/AFP Photo)





A flowrider competes on an artificial wave, during the Flow Tour 2016 in Santiago on October 22, 2016. (Photo by Martin Bernetti/AFP Photo)





A surfer rides a wave off Praia do Norte (North Beach) near Nazare, central Portugal, on October 24, 2016. (Photo by Francisco Leong/AFP Photo)





World Surf League World Title winner Hawaian surfer John John Florence competes during the final heat of the Portuguese stage of the World Surf League championship at Supertubos beach near Peniche, central Portugal, on October 25, 2016. (Photo by Francisco Leong/AFP Photo)





A drone flies above World Surf League World Title winner Hawaian surfer John John Florence during the final heat of the Portuguese stage of the World Surf League championship at Supertubos beach near Peniche, central Portugal, on October 25, 2016. (Photo by Francisco Leong/AFP Photo)





A surfer rides a wave off Praia do Norte (North Beach) near Nazare, central Portugal on October 24, 2016. (Photo by Francisco Leong/AFP Photo)





A surfer rides a wave off Praia do Norte (North Beach) near Nazare, central Portugal, on October 24, 2016. (Photo by Francisco Leong/AFP Photo)





A surfer rides a wave off Praia do Norte (North Beach) near Nazare, central Portugal, on October 24, 2016. (Photo by Francisco Leong/AFP Photo)