So I've been thinking some about the way cetaceans are kept in captivity, how the conditions can be improved and all. Most of the dolphin exhibits I've seen have been just blank, concrete tanks. One doesn't really see that for other captive animals. I'm wondering, are there any zoos or aquariums that go beyond that? I know of the tank that used to house Keiko the orca in Oregon. I would like to see a dolphin tank that resembles a natural habitat, I find the usual tanks to be pretty sterile and boring and it would be interesting to see something different.