Had my first Big Wave Shoot last January when the Jaws swells came in. It was my first time shooting there, and I learned some important things that would be invaluable if it is your first time shooting.
Thank you to BHPhoto.com for supplying the Canon 5D IV I used in this shoot. Many great images, but the most important think I learned was REACH of the lens. You really need 800mm to get into the action, and I had to give up AF to get there with my Canon 2x iii Extender.