Out of boredom and curiosity I've built a frame to attach a waterproof camera to, along with dive torch and bait. My test run was Mudeford Quay today, which is only about 3-5m deep. It worked quite well given how murky the water is!
Not a valid youtube URLFirst attempt - Nice and clear except for some seaweed!
http://youtu.be/5-hpxYgJW88?hd=1Not a valid youtube URLMoved along the quay a bit to where it was deeper and more murky, but got a number of crabs on camera
http://youtu.be/M11Uka_D7ng?hd=1Not a valid youtube URL
Secondary camera, got a good view of the side of the quay, and caught a crab off guard half way through!
http://youtu.be/0fwc5xGY9S4?hd=1