HI George whereabouts in Eygpt are you going. I went to Sharm El Sheik last year. If you are not going diving yourself go on the glass bottomed boat its absolutely amazing.All the sides at the bottom are made of glass, its like being in a tropical fish tank and the coral is just awesome.A polarizing filter will help if do go on it. I'll download some of my photos so you can see what I mean.
Cheers
Boxerdognaz