Muriwai Regional Park - text below from the ARC web site :
The park was established in 1906 as Motutara Domain, taking its name from the rock
stack 'motutara' - island of the sea birds.
The park includes the spectacular Takapu (gannet) Refuge at Otakamiro Point, one of only three mainland gannet colonies in New Zealand.
The best time to visit the gannets is between October and February. The chicks hatch in November then leave for Australia at 15 weeks old returning to breed when they are 3 and seven years old."