"95% of the people that were surfing in the '90s were probably on the wrong surfboard," reckons master of the silky smooth arc and seasoned twin-finner Rob Machado.

And the right surfboard? Why, the fish of course! Here keen pescatarians Skip Frye, Mark Richards, Dave Rastovich, Donavon Frankenreiter, Dan Malloy, David Nuuhiwa, Derek Hynd, Jack McCoy, Peter Townend and Steve Lis join Machado in extolling the virtues of the twin-fin surfboard, in the trailer for Joseph Ryan's Fish: The Surfboard Documentary -- "a look at the origin and impact of the fish surfboard design".