Remarkable footage of professional surfers performing amazing rides during the first big swell of the season in Nazare, Portugal.

The video, captured on October 21 in Praia do Norte, shows surfers riding up to 65-ft waves and experiencing terrifying wipeouts.

''Despite a soft starting, the session rapidly developed into a stormy and uncommonly dangerous day, with massive waves, strong currents, and a heavy shorebreak on the inside,'' the filmer later wrote online.

''It was a nightmare for the safety teams to operate. However, despite many wipeouts, failed rescues and several jet skis flipped by the huge surf, there were no major injuries on record,'' he added.

Praia do Norte beach, near the fishing village of Nazaré, has become famous for huge waves since Hawaiian surfer Garrett McNamara set a then record in 2011 for the largest wave ever surfed when he rode a 78-foot wave.