Brazilian surfer Carlos Burle rides a wave in Nazaré, central Portugal. In recent years the sleepy fishing port has become popular among surfers. A submarine canyon 5 kilometers (3.1 miles) deep and 170 kilometers long allows open-ocean swells to reach the coast near Nazaré at almost full strength, where they crash against the shallow seabed and cause unusually high waves. In November 2011, Garrett McNamara picked up a Guinness World Record here for riding a 24-meter (79-foot) wave -- the highest ever surfed.