You can see a full-sized version of this photograph here.
My children at the swimming pool, before lessons. I was playing with the high speed setting on my camera, I think this one is 1600. I love the grain, it was a proof of concept that B&W photography would produce a pleasant noise, like film grain -- not that the character of the grain is the same, but that the noise can be a pleasent kind of noise.
I also love the joy that is obvious from their running with abandon.