From: Arc Hive
Here is some action from the Quicksilver Makahiki Pro 2006 at Makaha.
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.