A surfer rides a large wave at El Bocal during the Vaca Gigante (Big Cow) giant wave surf competition in Santander, northern Spain December 17, 2016. (Photo by Vincent West/Reuters)





Spanish surfer Mirka Solar rides a large wave at El Bocal during the Vaca Gigante (Big Cow) giant wave surf competition in Santander, northern Spain December 17, 2016. (Photo by Vincent West/Reuters)





Surfers ride a large wave at El Bocal during the Vaca Gigante (Big Cow) giant wave surf competition in Santander, northern Spain December 17, 2016. (Photo by Vincent West/Reuters)





French surfer Justine Dupont rides a large wave at El Bocal during the Vaca Gigante (Big Cow) giant wave surf competition in Santander, northern Spain December 17, 2016. (Photo by Vincent West/Reuters)





French surfer Justine Dupont rides a large wave at El Bocal during the Vaca Gigante (Big Cow) giant wave surf competition in Santander, northern Spain December 17, 2016. (Photo by Vincent West/Reuters)





A dog shakes off sea water after going for a swim at El Bocal during the Vaca Gigante (Big Cow) giant wave surf competition in Santander, northern Spain December 17, 2016. (Photo by Vincent West/Reuters)





A surfer rides a large wave at El Bocal during the Vaca Gigante (Big Cow) giant wave surf competition in Santander, northern Spain December 17, 2016. (Photo by Vincent West/Reuters)





A surfer drops in on a large wave at Praia do Norte in Nazare, Portugal December 17, 2016. The Praia do Norte beach has become a famous beach for big waves surfers around the world since Hawaiian surfer Garrett McNamara got a world record for the largest wave surfed in 2011. (Photo by Rafael Marchante/Reuters)





Brazilian surfer Marcelo Luna drops in on a large wave at Praia do Norte in Nazare, Portugal December 17, 2016. (Photo by Rafael Marchante/Reuters)





Brazilian surfer Marcelo Luna drops in on a large wave at Praia do Norte in Nazare, Portugal December 17, 2016. (Photo by Rafael Marchante/Reuters)





Portuguese surfer Alex Botelho drops in on a large wave at Praia do Norte in Nazare, Portugal December 17, 2016. (Photo by Rafael Marchante/Reuters)





Portuguese surfer Alex Botelho drops in on a large wave at Praia do Norte in Nazare, Portugal December 17, 2016. (Photo by Rafael Marchante/Reuters)





A surfer drops in on a large wave at Praia do Norte in Nazare, Portugal December 17, 2016. (Photo by Rafael Marchante/Reuters)





A surfer drops in on a large wave at Praia do Norte in Nazare, Portugal December 17, 2016. (Photo by Rafael Marchante/Reuters)





French Brazilian surfer Eric Xavier drops in on a large wave at Praia do Norte in Nazare, Portugal December 17, 2016. (Photo by Rafael Marchante/Reuters)





Spanish surfer Mirka Solar (R) and Portuguese rider Joana Andrade go to the water at El Bocal during the Vaca Gigante (Big Cow) giant wave surf competition in Santander, northern Spain December 17, 2016. (Photo by Vincent West/Reuters)





People gather to watch a tow-in surfing session at Praia do Norte in Nazare, Portugal December 17, 2016. (Photo by Rafael Marchante/Reuters)





People gather to watch a tow-in surfing session at Praia do Norte in Nazare, Portugal December 17, 2016. (Photo by Rafael Marchante/Reuters)