Oddly enough my father went to college on a diving scholarship (high dive was his specialty) - I was always mesmerized watching MY Daddy do that - but I would also sit by the side of the pool and cry until he was "down".
He could swim 4 length's of a pool (it was at the Y) underwater...we grew up IN the water and I love all water sports. He also put on some big productions in synchronized swimming and even swam with Ester Williams. I'll have to dig out the pictures and see if I can scan them.
I don't get how you can do this and not be the exact same height and weight!!!