I've not seen them in person since 1996, when they were in the "Underwater Theatre", but the San Diego Sea World's Commerson's dolphins are now living in an exhibit in the new "Journey to Atlantis" ride. Their pool is furnished like an underwater "city".
From the photos the tank looks like a cetacean nightmare, with many smooth surfaces and very little that might be interesting/useful for the dolphins themselves. I doubt there is any education involved at all. And being housed adjacent to a roller coaster seems rather disruptive.
FYI, there was a bit of discussion on these dolphins in the General Forum here on ZooBeat:
Ungulate is correct about the Commerson's dolphin exhibit. I was at San Diego Seaworld in May of 2006 and the habitat is terrible, especially for such a beautiful species.