Coordinates: 36°49′S 174°25′E / 36.817°S 174.417°E / -36.817; 174.417

Muriwai, also called Muriwai Beach, is a coastal community on the west coast of the Auckland Region in the North Island of New Zealand. It is home to a large colony of gannets. In 2013 the first fatal shark attack in more than three decades in New Zealand happened 200m off shore.[1]

Muriwai Beach
Looking north from the gannet colony outlook


Muriwai is approximately 17 km west of Kumeu, 42 kilometres northwest of Auckland city, at the southern end of an unbroken 50 kilometre stretch of beach which extends up the Tasman Sea coast to the mouth of the Kaipara Harbour. One of several popular beaches in the area (others include Piha and Karekare), it experiences a population explosion in summer when Aucklanders head to the sea. It is in the Rodney Ward of the Auckland Region.


At the 2013 Census, the usually-resident population of Muriwai Beach was 1,131. The median income of people in Muriwai Beach is $39,500, compared with $29,600 for Auckland. The town is over 93% white European. The unemployment rate is 4%[2]


The distinctive silty black sand of Muriwai Beach


Sand and rock (sedimentary), older volcanic material, with many concretions and layers in the cliff walls. A blowhole plays often. The shore platform is also well jointed, with the main rock type being piha conglomerate.

Muriwai Beach has black sand, caused by the iron content derived from the ancient volcanoes in the area, including the large "Kaipara Volcano" which was situated offshore from the Kaipara Heads, and erupted 23-16 million years ago.[5] The black sand is moved up the west coast of the North Island by longshore drift. The area has retained much of its natural beauty and isolation.

Muriwai Regional Park

Much of the land at the southern end of the beach is part of the Muriwai Regional Park. Maukatia (Maori Bay) to the south is separated from Muriwai Beach by Otakamiro Point, with its steep cliffs and rocky nesting areas that are home to the region's only gannet colony. The site of the gannetry has been identified as an Important Bird Area, by BirdLife International.[6]

The Regional Park includes a golf course along Coast Rd, and the area north of Okiritoto Stream is known as the "Five Mile Strip" or "Five Mile Block" as this is its approximate length. A horse park (parking area for horse floats and trucks to unload) is located just to the south of Okiritoto Stream. 4WD access on to the beach is also provided at this point.

The Five Mile Block provides recreational trails for horse riders, and walkers.[7] Cyclists enjoy the Coast Rd as far as the top of the Regional Park (but are not permitted into the adjoining Woodhill Forest) by the forest managers. Dog walkers also frequent the area, as it provides a wide range of off-leash walking opportunities.

From the gannet colony
Wild coast and gannet colony - Motutara Island
Wild coast and gannet colony - Motutara Island 
A closer look at the colony
A closer look at the colony 
Gannets at Muriwai; adults and one young bird
Gannets at Muriwai; adults and one one young bird 
Adult and child Gannet at Muriwai
Adult and child Gannet at Muriwai 

2013 shark attack

See also: Shark attack

In February 2013, filmmaker Adam Strange was killed at Muriwai Beach while swimming about 200m offshore, when he was attacked by a small group of great white sharks.[8][9] As a result, Muriwai Beach was closed for a number of days.[10] Initial reports suggested the culprit was a bronze whaler, but it was later deemed more likely a great white was to blame.[11]


  1. "Swimmer dies after shark attack". 3 News NZ. February 27, 2013.
  2. "2013 Census QuickStats about a place: Muriwai Beach". Statistics New Zealand.
  3. "Motor racing". An Encyclopaedia of New Zealand. 1966.
  4. "". Woodhill Forest Equestrian Park. 2010.
  6. BirdLife International. (2012). Important Bird Areas factsheet: Gannet Island. Downloaded from on 2012-02-16.
  7. "Muriwai Beach and Regional Park". NZ Bridleways.
  8. "Swimmer dies after shark attack". 3 News NZ. February 27, 2013.
  9. "Shark attack victim's family embrace in sea". February 28, 2013.
  10. "Beach closed as search on for shark". 3 News NZ. February 28, 2013.
  11. "Muriwai shark most likely a great white". 3 News NZ. February 28, 2013.
Wikivoyage has a travel guide for Muriwai.
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