Walk 53, 16 Nov 2020
Maungauika/North Head is located in Devonport. This historic defence was placed on the northern headland of the Waitemata Harbour in 1885 to protect Auckland from a feared Russian invasion.
The explosion of Mount Tarawera in 1886 was initially thought to be the beginning of a Russian bombardment.
The underground tunnels and the oldest buildings on the summit, a cookhouse and barracks, still remain from this period.

Maungauika means “hill of Uika.” Te Uika was a cousin of an ancient explorer named Toi.
According to the Dept of Conservation, O Peretu is the ancient name for this headland.
Peretu was a Maruiwi ancestor whose people originally occupied the area. His carving is on the gateway (waharoa) of nearby Rangitoto Island. Some of Toi’s crew stayed in Tamaki and intermarried with Peretu’s people. Uika, Toi’s cousin, was one of them. Uika settled at present day North Head, known thereafter as Maunga-a-Uika or Maungauika.
Related walk: Rangitoto Island
In 1841, the land formed part of the Mahurangi Purchase, through which the Crown obtained ownership of Auckland’s North Shore.
First protected as a reserve in 1972 when it was included in the Hauraki Gulf Maritime Park, the North Head Historic Reserve was managed by the Department of Conservation.
DOC no longer administers the reserve. Ownership of Maungauika/North Head Historic Reserve has transferred to Ngā Mana Whenua o Tāmaki Makaurau (the Tāmaki Collective) as part of Treaty Settlement negotiations.


Walk: Auckland 9
Links
Maungauika/North Head Historic Reserve
Self guided walk: North Head’s Self Guided Walk introduces you to a complex of tunnels, guns, searchlight emplacements and otherfortifications. These date from the late 1800s up to the time of the Second World War during which time North Head was a major military installation.
The numbers on the map in this brochure correspond to numbered markers on the track. Approximate walking time is one hour.
Castor Bay / Te Rahopara o Peretu
North of Maungauika / North Head is the Castor Bay Battery and Camp / Te Rahopara o Peretu.
Tradition records that the first arrivals on what is now the North Shore were Te Tini o Maruiwi. One of the descendants of these people, Peretu, is remembered in many place names in the area including the pa, Te Rahopara o Peretu, which is located on a headland to the south of the Castor Bay Battery and Camp site.
Later, Kawerau occupied this part of Tamaki, their area of influence being subsequently modified by Ngati Whatua and Ngati Paoa. In 1841 the site was obtained by the Crown as part of the Mahurangi Purchase, which included the land between Maungauika (North Head) and Te Arai in the north.
Castor Bay Battery and Camp / Te Rahopara o Peretu
An urban legend?
Legend has it that hidden in the tunnels there remain stores of live ammunition and the first two Boeing aircraft ever built. It is the lure of those Boeings that has attracted treasure hunters and continuing tales.
Ex-commercial pilot Martin Butler has dedicated two decades of his life to trying to uncover what happened to the two Boeing aircrafts, “the holy grail of aviation.”
Martin Butler has written books about it; Tunnel Vision and Tunnel Vision Refocused.
The known underground tunnels at Maungauika stretch no more than 200 metres but there have been a number of investigations into a larger, blocked off tunnel network.
Butler said a ground radar search showed areas in the mountain that could be the home to blocked tunnels and potentially the Boeing aircraft.
There are many stories from various sources including old soldiers of a vast underground system.
Auckland Underground: Missing planes mystery in North Head bunkers
Early Explorers and Eye Witnesses
“Really, what we’re trying to do is to quantify what is or isn’t inside North Head. Given all the stories of there being deteriorating ammunition, really, we need to get to the bottom of it, once and for all.”
The Tūpuna Maunga Authority confirmed to Stuff it has received Butler’s documentation and will asses it to determine whether “anything new” has been provided.
DOC had no further comment to make.
‘Compelling’ evidence: Ex-pilot’s quest to solve tunnel mystery reaches key point
February 27, 2026 •

















