In the tube under the bay, at the Aquarium of the Bay at San Francisco's Pier 39.
It is a small aquarium, but fun, with the tubes being a main attraction.
There are also jellies, a cool octopus, and entertaining sea otters.
I like the way the line on the floor and the walls lead you to the curve of the glass and the people. I also like that the glass captured the reflections of the people in the tube. The lighting had to be tricky inside there and you did a wonderful job with it.