A High Court has ruled in favour of the Napier City Council and its decision-making process to close Marineland.
Marineland closed in 2008 after the death of its remaining dolphin.
The decision has been a bone of contention in Napier.
The case was brought by Friends of Marineland, which was established as an advocate for the park and has pushed for its re-opening.
It sought a judicial review of the council's decision-making process in closing the park.
The High Court has ruled the council considered all reasonably practical options for Marineland and consulted on potential options.
The judge has ruled the nature of that consultation was genuine and not mere window dressing.