This park lost its last dolphin in 2008, Kelly who arrived at the park with Shona, another dolphin in 1974. After a post-mortem, the suspected cause of death was stomach cancer. Although the park is still open now, it was closed for a couple of months by the local council from the 11th September 2008, after Kelly's death. After Kelly's death, no more dolphins could be purchased (due to protesters/restrictions on their old facilities/lack of getting a deal) and there were worries about the sustainability of the park. Today however, the park is home to sealions, new zealand fur seals and penguins.

Kelly and Shona:


http://www.zoochat.com/97/marineland-napier-new-zealand-30493/
For more on the history of the park:
http://www.marineland.co.nz/history.php