The lake was originally a river valley. 7,200 years ago at the end of the Last Glacial Maximum, when sea-levels began to rise, Te Henga / Bethells Beach began to form, as sand dunes migrated into the river valley. When sand dunes formed a barrier, Lake Kawaupaka began to form as a freshwater lake.[5]
History
The lake is within the traditional rohe of Te Kawerau ā Maki, and was known as Roto Kawaupaku.[6] The name refers to the Little black cormorant (kawaupaka), who were seen as the guardians of the lake.[7] The lake was part of the greater Te Henga / Bethells Beach and Waitākere River area of settlements, with the localities of Tūrapa located on the north shore and, Pākōwhatu to the east of the lake.[6] Pākōwhatu was a pā that used Ngāti Awa fortification techniques, learnt from the Ngāti Awa people as they travelled south past the Waitākere Ranges area towards Kawhia Harbour and Taranaki.[6]
The lake remained mostly undisturbed during European colonisation. During the 19th century, flax was harvested from the lake, and pioneer John Neale Bethell planted an orchard on the lakeside.[8] The lake was purchase din 1979 by the Queen Elizabeth II National Trust, after which it was administered by the Auckland Regional Council as a nature reserve.[5]
^TKITA-2013-0062 CULTURAL VALUES ASSESSMENT FOR
BETHELLS / TE HENGA / WAITAKERE VALLEY LOCAL AREA PLAN Prepared by
Edward Ashby Heritage and Environment Unit Te Kawerau Iwi Tribal Authority
^ abCameron, Ewen; Hayward, Bruce; Murdoch, Graeme (2008). A Field Guide to Auckland: Exploring the Region's Natural and Historical Heritage (Revised ed.). Random House New Zealand. p. 162. ISBN978-1-86962-1513.
^ abcMurdoch, Graeme (1990). "Nga Tohu o Waitakere: the Maori Place Names of the Waitakere River Valley and its Environs; their Background History and an Explanation of their Meaning". In Northcote-Bade, James (ed.). West Auckland Remembers, Volume 1. West Auckland Historical Society. pp. 13, 17, 22. ISBN0-473-00983-8.
^"Lake Kawaupaka". New Zealand Gazetteer. Land Information New Zealand. Retrieved 10 May 2022.