If you like the idea of taking 5 mega pixel photos and HD video of yourself while you are playing on the water, then you should check out GoPro Cameras.
What do you need?
This varies slightly depending on what you want to use it for. When you are making a video or taking photos, it always makes it more interesting to have a number of different angles. This can be achieved by getting different GoPro Camera mounts.
For all sports, you need a camera and a waterproof housing. A sensible way to start is with a GoPro Helmet Hero HD Camera and Housing. Along with an SD card to record your footage, this give you everything that you need to get started. The Helmet Hero package gives you everything that you need to mount that camera to a helmet or flat surface as well as the camera itself, a waterproof housing and a rechargeable lithium battery.
Surfing and SUP
If you want to use your GoPro for surfing and SUP then it’s worth checking out the GoPro Surfboard Mount accessory kit. As well as a decent sized sticky pad, this kit includes an FCS style plug mount that any board shaper or repairer can fit for you to the deck of your board.