go for it bindi.
btw here is some of the settings I used and reasoning behind:
normally with birds I use centre weighted metering but I used matrix
mode for these as I felt that the water and foam would contribute to the lighting of the shots significantly. Also the water would act like a reflector and help light the surfers.
The white foam will be the brightest stuff in the frame so you could probably spot meter on that and set exposure based on that
OR
do what I did: I assumed that around -1 compensation would be about right so I took 1 shot with no comp and look at the blinking highlights display.
(which looked like a xmas tree as expected)
so I dialed in -1 compensation and reshot. this time no blinking highlights.
I felt that maybe I could use less comp so dialed in -.66 and started to get the odd blown highlight so went back to the -1 and left it there. I boosted exposure by .2 ev on the comp because I felt the shots were a little tiny bit dark.
If unsure of lighting conditions the blinking highlights display and or histogram display are your most valuable screens.
I leave my camera on the highlights screen most of the time and if I feel that some highlights may have been lost, I can see immediately.
I felt the 80-400vr was enough lens to get the shots, more reach wouldnt have gone astray, but I didnt have it.
I shot as close to the hard sand as I could (without going near the spot where a wave might come up and wet my gear.)
I used my tripod and wimberley head and had vr off for these shots.
I found that operator fatigue was way less like this. use your tripod, (vr off) maybe take a folding chair and sit down in comfort whilst getting the shots.
We didnt have chairs but looking back it wouldnt have been hard to take one
these shots were taken mid arvo.
mainly because we were birding prior to that.
it may be a reasonalble time to do this as the sun rises in the east and east coast beaches by definition east, so the sun will rise over the beach.
the sun was behind us when shooting these because of the afternoon conditions.
I think this helped as there was no strong light in front of the camera.
Hope this helps
Steve