Does the one at Milford Sound count?
Milford Deep is very different from an aquarium
Unlike an aquarium, the fish are free to come and go; it is the people who are contained. There is no feeding of fish. What happens here is completely natural and will be happening all over the fiord. Because visitors looking out of the windows are just part of life for this marine community, they just carry on unaffected. This provides a unique opportunity to closely view the real life situations deep below the surface of the fiord; quite different from the artificial environment of an aquarium.
Deep Water Emergence phenomenon
Overlaying the sea, a fresh water layer, the result of the high annual rainfall of the Fiordland area and the distinctive narrow shape of the fiord causes a phenomenon called "Deep Water Emergence". This creates a similar environment to the deep ocean, but at a much shallower depth within the fiord, allowing visitors the chance to see deep-sea species close up. Milford Deep is the only Observatory in the world where the unusual results of this phenomenon can be viewed.
Visitors are continually amazed and fascinated by what they see:
* Rare Red and Black Coral
* Butterfly Perch
* Anemones and Sponges
* Scarlet Wrasse
* Snake Stars
* Crinoids and Zoanthids
* Other deep water species