Yeah, you got it. If you look on some of the pics you can just see a green line off the back of the board.
I got a old boogie board and mounted an old slik tripod on top...dug out three small indents in the boogie board where the tripod legs sat. Filled up a 2 litre water bladder and tied it to the tripod. Tied a rope from the tripod (where the legs meet) around the back and then under the boogie board... created drag like a *blip* sea anchor.
give me a minute, I'll go set it up again and take some pics of the setup... Might be handy for anyone as an alternative to a gopro in some instances...don't try this while downwinding...haha...
I set up the angle of the camera pointing up slightly before setting off, just luck that I got the framing right, as I didn't think that the bow of the boogie board would raise up so high due to the weight of the water/bladder, which definitely helped with stability... it never capsized... I encountered the wake of small boats a couple of times...
and yeah, paddling while towing all that gear did catch the attention of the local Maritime patrol. With raised eyebrows, his words were..."So what's all this then?"... After a few encouraging words about me wearing a PFD, he offered to help me re-position the camera as it looked like it was aiming too high... but as you can see from the pics, it was spot-on... Camera set to auto delay - 1 shot every 10 seconds up to 1000 max (got 499)