It was a small dolphin which swam on the surface. I benefitted from it to take it in photo, it didn't seem so wild.... ;-)
Fires of bingales under the moon at the time of the fireworks of Pornichet(44 France) of July 14, 2003
In fact, this photo was simply rotate... Some palms' actions make turbulences in water. Bubbles go up while whirling.
I'm addict of optical illusions. I read lot of books on MC Escher who drew lot of optical illusions. He was inspired by Penrose. Look the tri-beam at the center. It is impossible to build. This photo is garanty without any numeric compositing. Clic here to view the secret.