It looks really good, but skin underwater kind of looks like broken glass when the light shines on it. Though that is in really deep water. In shallow water the skin looks normal with highlights where the water ripples over the skin.
My parents were so concerned that I wouldn't know how to swim because they were never allowed to learn that they put us through swimming classes. I'm not very good on top of the water, but I love to swim under. I wish I could dive.