Anemone And Crab
I took a few pictures of this Anemone and in each you can see the crab getting larger as it comes up to the surface. These little guys only get to be 2 inches wide and are generally herbivorous.
The difference between slow film and a pro lens, verses a disposable camera can be quite striking. The color is what surprises me here. The sea cucumbers were pretty common, and are really stuck to the bottom.