Rip Curl E-Bomb on a 9' red and white longboard pulling into closeouts around 108th st on LBI a week or two ago. Long shot but stranger things have happened. Side note - the surf mount worked great but the extension arm was not constructed with a 170 lbs of flailing surfer in mind.
Why don't you post a picture of the person on the recorded video? That would probably help.
Guys face is shadowed. I could make a claim it was me, ha. For the claim to be valid the guy needs to say" I was surfing (x) beach (not a popular spot) on (x) day and my (x) gave me the camera for my bday." Another hint....The gopro was under the sea for over 6 months, but in perfect condition except for some moss and a barnacle on the housing. Says a lot for the cameras durability.