Go Pro Cameras have been around for awhile now and for good reason.
Most notably known in the surfing world for their mountable HD Underwater Camera, Go Pro Cameras is leading the way for affordable underwater cameras. It is the only board mountable camera which can shoot HD Video and Still images.
Their Surf Specific camera boasts 5 Megapixels. Not comparable to a DSLR, but for the price it can't be beat. The camera housing is submergible to depth of 180 feet which means it can handle the heaviest surfing conditions. At $269.99 the price is very modest to get into underwater photography.
The Surf Hero comes with a adhesive board mount which allows you to video yourself while surfing. The mount is heavy duty and Go Pro has done a great job testing it in heavy surf from Tahiti to the North Shore of Hawaii. Various mounts can also be purchased such as a wrist strap and helmet mount to expand your options when shooting.
The battery last for 2.5 hours after a full charge - plenty to capture your whole surf session without worry. Various settings on the camera will allow you to catch all the action from your session. Photos can be taken every 2/5/10/30/60 seconds. Other options include video, self timer, single shot or triple shot. I suggest playing around with all the different shooting modes and see which works best for you.
Go Pro Cameras are a great way to catch all the action of you and your friends!!