Thanks to Jonathan who sent me the link with this thread.
Very nice video and footwork.
Been taking these kind of videos for a while now (even though the surfing is not even remotely close as good as Casso's).
In case you guys wonder how it comes out on a shorter board, here's a short one with the camera mounted on a 8.6:
The camera I use is a GoPro
gopro.com/en/au/ It's attached with a quick release system to a small plastic plate that is stuck with a superstrong 3M tape to the board. All this things are available as standard accessories. They have a suction cup too, but for surfing I find the little plate better, because smaller and lighter. The plate stays on your board though...
Just in case, here's my youtube page with most of my videos:
I put the camera pretty much on every part of a surf and windsurf board...
Cheers.