Indeed, water is a very dynamic substance.. and yes belly flops of a diving board hurt, not as much as hitting the ground though..
THE VOID!!!!!!!!!!!!!!!!!!! THE VOID IS SUPERIOR TO WATER!!!! NOTHING AND THE POTENTION FOR EVERYTHING!!!!!!!! WHITE AND BLACK!!!!!!!!!!!! sorry, i just felt like posting that. I read it a long long long time ago in the ninjutsu forum, talked of technique classification through the elements.