Lake Pupuke
Encyclopedia
Lake Pupuke is a heart-shaped freshwater lake
Lake
A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...

 occupying a volcanic explosion crater (or maar
Maar
A maar is a broad, low-relief volcanic crater that is caused by a phreatomagmatic eruption, an explosion caused by groundwater coming into contact with hot lava or magma. A maar characteristically fills with water to form a relatively shallow crater lake. The name comes from the local Moselle...

) between the suburbs of Takapuna
Takapuna
Takapuna is a central, coastal suburb of North Shore City, located in the northern North Island of New Zealand, at the beginning of a south-east-facing peninsula forming the northern side of the Waitemata Harbour...

 and Milford
Milford, New Zealand
Milford is a suburb of Auckland, New Zealand's largest city. Located on Auckland's North Shore and part of North Shore City, Milford is located on the northern side of Lake Pupuke. It also has a popular swimming beach, which runs some two kilometers from Black Rock in the south to Castor Bay in the...

 on the North Shore of Auckland
Auckland
The Auckland metropolitan area , in the North Island of New Zealand, is the largest and most populous urban area in the country with residents, percent of the country's population. Auckland also has the largest Polynesian population of any city in the world...

, New Zealand
New Zealand
New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

. The heart shape is a result of its formation by the linking of two circular craters - a larger one forming most of the lake and a smaller one forming the arm in the northeast. Separated from the sea by less than 200 m at one point, it has a circumference of about 4.5 km and reaches 57 m in depth. It is popular for recreational activities and the lakefront property around it.

Geology

Other similar craters in the Auckland Volcanic Field
Auckland Volcanic Field
The Auckland volcanic field is a monogenetic volcanic field in the North Island of New Zealand. Basaltic in nature, it underlies much of the metropolitan area of Auckland....

 were either buried by later eruptions, or breached by erosion as rainwater collected and overflowed the edge of the crater. Lake Pupuke remains a lake because, unlike the other vents, its eruptions produced substantial lava flows; water can thus escape through cracks in the lava reaching under the crater wall, creating a series of freshwater springs along the beaches between Takapuna and Milford. The lava flow at the end of Takapuna Beach enveloped a kauri forest, producing an internationally significant collection of tree moulds, which has been called "New Zealand’s only example of a fossil forest preserved in a lava flow" and which "ranks among the best examples in the world." Some moulds have escaped burial by the boat ramp and car park built on top of the lava, and can be viewed at low tide.

Māori

A Māori
Maori mythology
Māori mythology and Māori traditions are the two major categories into which the legends of the Māori of New Zealand may usefully be divided...

 myth surrounding the lake tells of a Tupua couple, children of the Fire Gods. After quarreling and cursing Mahuika
Mahuika
Mahuika is a Māori fire deity. Generally, Mahuika is female. In some versions, she is the younger sister of Hine-nui-te-pō, goddess of death. It was from her that Māui obtained the secret of making fire. She married Auahi-Turoa and together they had five children, named for the five fingers on the...

, the fire-goddess, their home on the mainland was destroyed by Mataoho, god of earthquakes and eruptions on Mahuika's behalf. Lake Pupuke resulted from the destruction, while Rangitoto Island
Rangitoto Island
Rangitoto Island is a volcanic island in the Hauraki Gulf near Auckland, New Zealand. The 5.5 km wide island is an iconic and widely visible landmark of Auckland with its distinctive symmetrical shield volcano cone rising 260 metres high over the Hauraki Gulf...

 rose from the sea as their exile. The mists surrounding Rangitoto at certain times are considered the tears of the Tupua couple for their former home.

European

In 1894, a pump house was built on the shore of the lake to supply fresh water to the local area. This was replaced in 1906 by a second pump house. As a result of increasing demand, the water level of the lake fell and water quality decreased. The use of the lake as a fresh water supply was discontinued in 1944 when new supplies were sourced from reservoir
Reservoir
A reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...

s in the Waitakere Ranges
Waitakere Ranges
The Waitakere Ranges are a chain of hills in the Auckland metropolitan area, generally running approximately 25 km from north to south, 25 km west of central Auckland, New Zealand. The maximum elevation within the ranges is 474 m...

. The second pump house became a protected building (Category II) under the New Zealand Historic Places Trust
New Zealand Historic Places Trust
The New Zealand Historic Places Trust is a non-profit trust that advocates for the protection of ancestral sites and heritage buildings in New Zealand...

 in 1983 and is maintained as a theatre
Theatre
Theatre is a collaborative form of fine art that uses live performers to present the experience of a real or imagined event before a live audience in a specific place. The performers may communicate this experience to the audience through combinations of gesture, speech, song, music or dance...

 and art gallery
Art gallery
An art gallery or art museum is a building or space for the exhibition of art, usually visual art.Museums can be public or private, but what distinguishes a museum is the ownership of a collection...

. There is also a café adjacent to the old pump house.

Human use

Close to the Takapuna city centre, the lake is popular not only with wild birds (such as shag
Cormorant
The bird family Phalacrocoracidae is represented by some 40 species of cormorants and shags. Several different classifications of the family have been proposed recently, and the number of genera is disputed.- Names :...

s) but with picnickers, paddlers, kayakers, rowers, yachtsman, divers, and windsurfers (lessons have been given on the lake). Free divers (no tanks) have practiced in the lake. College rowing crews use it. There have been boating races.
The Pupuke Boating Club operates there. Takapuna Boating Club hosts regattas. Lake Pupuke is suitable for swimming but murky and contains thick vegetation, and there have been incidents of drownings. The lake has been tested for bacteria and generally meets safe swimming conditions.

In 2007, recreational fishing has become more prominent since rainbow trout
Rainbow trout
The rainbow trout is a species of salmonid native to tributaries of the Pacific Ocean in Asia and North America. The steelhead is a sea run rainbow trout usually returning to freshwater to spawn after 2 to 3 years at sea. In other words, rainbow trout and steelhead trout are the same species....

 were released into the lake from a fish hatchery
Fish hatchery
A fish hatchery is a "place for artificial breeding, hatching and rearing through the early life stages of animals, finfish and shellfish in particular". Hatcheries produce larval and juvenile fish primarily to support the aquaculture industry where they are transferred to on-growing systems...

. However, since there are no actual streams entering or leaving the lake, trout will not be able to reproduce naturally, and new trout will have to be released periodically. Other fish in the lake include tench, perch, rudd, and carp.

The crater wall has been quarried in several places, most intensely on the western side between Shea Terrace and Rangitira Avenue, where Smales Quarry continues to operate. A long thin lagoon called Quarry Lake has been formed there by flooding a former quarry area.

The Takapuna PumpHouse Theatre is alongside the lake. Above the Pumphouse is Takapuna
Takapuna
Takapuna is a central, coastal suburb of North Shore City, located in the northern North Island of New Zealand, at the beginning of a south-east-facing peninsula forming the northern side of the Waitemata Harbour...

's municipal swimming pool, which has sometimes been described as "intrusive" and "ugly".

Lakeside real estate is expensive. Empty lakefront land is rare; one undeveloped parcel cost $2.7 million in 2008. Lake Pupuke is identified as a "high risk" area in the event of a tsunami, and a high-tech phone alert system was developed for North Shore residents in case of an emergency.

External links

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