These are just lucky. I left my camera at the hotel, so i couldn't use it all day until almost 7 PM, when Amir and Dimitri showed up and brought it for me. By then it was magic hour and this is apparently as true under water as above. This made it easy to get our friends right in between me and the sun as I dove below them.
On top of that, two of the guys who ventured back out into the water to help me are professional modern dancers, so they really understood what to do with their bodies and what i was looking for, without me having to even explain.
I didn't have to do any processing on the image except to run an Auto-Level in photshop.