A surfer drops in on a large wave at Praia do Norte, in Nazare December 11, 2014. Praia do Norte beach has gained popularity with big wave surfers since Hawaiian surfer Garrett McNamara broke a world record for the largest wave surfed here in 2011. (Photo by Rafael Marchante/Reuters)

Big-wave surfer Cliff Skudin of US drops in on a large wave at Praia do Norte, in Nazare, November 29, 2014. (Photo by Rafael Marchante/Reuters)

Big-wave surfer Sebastian Steudtner of Germany drops in on a large wave at Praia do Norte, in Nazare, November 29, 2014. (Photo by Rafael Marchante/Reuters)

Big-wave surfer Garrett McNamara rests during a surf session at Praia do Norte, in Nazare, January 31, 2013. (Photo by Rafael Marchante/Reuters)

Big-wave surfer Garrett McNamara of the U.S. drops in on a large wave at Praia do Norte, in Nazare, November 1, 2013. (Photo by Rafael Marchante/Reuters)

People take pictures of large waves at Nazare beach, December 25, 2013. (Photo by Rafael Marchante/Reuters)

Big-wave surfer Garrett McNamara of the U.S. drops in on a large wave at Praia do Norte, in Nazare, November 1, 2013. (Photo by Rafael Marchante/Reuters)

Big-wave surfer Garrett McNamara drops in on a large wave at Praia do Norte in Nazare, January 29, 2013. (Photo by Rafael Marchante/Reuters)

A surf board is seen on the air after a surfer failed to ride on a large wave at Praia do Norte, in Nazare December 11, 2014. (Photo by Rafael Marchante/Reuters)

Surf supporters attend a surf session of big-wave surfer Garrett McNamara at Praia do Norte in Nazare, January 31, 2013. (Photo by Rafael Marchante/Reuters)

Big-wave surfer Garrett McNamara of the U.S. drops in on a large wave at Praia do Norte, in Nazare, November 1, 2013. (Photo by Rafael Marchante/Reuters)

People gather to watch a tow-in surfing session at Praia do Norte, in Nazare December 11, 2014. (Photo by Rafael Marchante/Reuters)

A surfer drops in on a large wave at Praia do Norte, in Nazare December 11, 2014. (Photo by Rafael Marchante/Reuters)

A surfer drops in on a large wave at Praia do Norte, in Nazare December 11, 2014. (Photo by Rafael Marchante/Reuters)

A surfer drops in on a large wave at Praia do Norte, in Nazare December 11, 2014. (Photo by Rafael Marchante/Reuters)

A surfer drops in on a large wave at Praia do Norte, in Nazare December 11, 2014. (Photo by Rafael Marchante/Reuters)

A surfer drops in on a large wave at Praia do Norte, in Nazare December 11, 2014. (Photo by Rafael Marchante/Reuters)

People gather to watch a tow-in surfing session at Praia do Norte, in Nazare December 11, 2014. (Photo by Rafael Marchante/Reuters)

People gather to watch a tow-in surfing session at Praia do Norte, in Nazare December 11, 2014. (Photo by Rafael Marchante/Reuters)

People gather to watch a tow-in surfing session at Praia do Norte, in Nazare December 11, 2014. (Photo by Rafael Marchante/Reuters)

A man picks up a broken surf board during a tow-in surfing session at Praia do Norte, in Nazare December 11, 2014. (Photo by Rafael Marchante/Reuters)