On Christmas Eve, a surfer from Santa Cruz rode a wave at Mavericks that witnesses say was over 100 feet tall, which would set a world record. But how do you reliably measure a wave?

From world record paddles to tow-assisted giants, here are 10 of the biggest waves ever surfed at Jaws, Nazaré and Cortes Bank.

El Porto surfer Nic Lamb places fifth in a Hawaiian contest only held in 30-foot-plus waves by Kevin Cody Nic Lamb knew at 12 ...

Incredible footage captured the impressive feat and showed Slebir fearlessly riding the enormous wave as it swelled to more ...

Slebir told Surfer Today, “It felt different. When I turned at the bottom, it felt like I was being sucked back up the face. I knew it was a big wave, but the speed made it hard to grasp just ...

If the wave's height is confirmed by Guinness World Records and the World Surf League, Slebir will hold the record for the largest wave surfed -- a title currently held by Sebastian Steudtner, who ...

just shocked the surfing community by catching a colossal wave reaching 108-feet-tall. The exciting event unfolded at Mavericks in Northern California just two days before Christmas Day ...

American surfer Alessandro ... felt that on really any other wave that I’ve ever caught.” The effort has already been said to be in discussion for the annual Big Wave Challenge.

Image via YouTube Gnarly, dude! A California surfer hanged ten big time on a recent wave and may have just surfed his way ...