From: surfzzupdude
John John Florence, Jordy Smith, Tim Reyes, etc. are surfing some extreme waves on the Oneill sunset.
Consider two representations of two very big waves, below. The first is a photograph of Mike Parsons at Cortes Bank. The second is a video of Garrett McNamara near Nazare, Portugal. Now take out some measuring tape and make the distance of one foot between your hands. That's the amount, according to the Billabong XXL committee, that McNamara's wave is bigger than Parsons's wave.