Surfing - tips

Hi I wanna ask u ppl who knows how to take a good picture during a surf session ?? Anybody know the subject ?? i NEED SOME INFORMATIONS ABOUT ISO, time, aperture... I was trying one day but... pictures are dark, colors heheh its really hard to call "that" colors... helppp

I start in the morning at about 1/500, f/5.6, and ISO 100. I never change my ISO but as the morning goes on, I will adjust my shutter speed up to 1/1250.

Tip: Take a sample shot as the wave breaks and look at the histogram. You want the highlights as far to the right as possible without overexposing them.