I've never been a fan of flash photography but I must admit, after upping the contrast and working with these photos just a bit, I see that the ones where I used the flash did turn out better. That may be because of the time of day.
Below is one of my friend's family. She and her boys/wife/girlfriend were at the beach the same time as us, even staying at the same condo complex. I made a few pictures for them. They are a beautiful family.