You should dedicated at least half a day to this trip. Odds are you'll rent a car to get here, so i'd recommend taking the time to enjoy the following things: black sand beach, views of Muriwai Colony, and the shoreline where powerful waves crash against the rugged rocks. Come here if you're looking for something outdoorsy to do in Auckland.
Muriwai Beach is a beautiful, black sand, windswept beach on Auckland's wild west coast.
This beach is more like a home for seabirds. Tourists here are just tourists. You will easily see patches of seabirds roosting here, and you can't bear to approach them to disturb them.