I was checking today to see if Google had added any more aerial view imagery to the Google Maps API. It looks like San Jose and San Diego are still the only areas to have Google Maps' version of Bird's Eye View imagery. However I did find that San Diego Sea World is covered in aerial view and in Google Street View.
This means that it is possible to explore Sea World via my Street View and Aerial View synchronised map and get a wonderful view of some performing dolphins.
View the Sea World Tour