Looking across the stonefields from the Heritage walk. Dairy farming was
established in this area in 1870 mainly by four settler families : The Elletts,
Rennies, Mendelssohns and Wallaces. These farmers built dry stonewalls with
skills they brought with them from Scotland. Manukau Heads are faintly
visible in the background

Rectangular gardening plots can be seen in some areas of Otuataua. These gardens
contain earth and stone mounds. The natural heat absorbing properties of the
rocks were used to stimulate the growth of kumara, yams, hue (bottle gourd)
and taro. This practice added one month to the growing season, extending
it from spring to mid-autumn

Freshwater springs and swampy ground are seen around the edges of the
stonefields as it emerges from beneath the lava flows. Mangere
Mountain can be seen in the background

Part of the Watercare Coastal Walkway. This area is rich in cultural history
and stretches 7 kilometres from Ambury Park to the Otuataua Stonefields

This is an area of international ornithological significance with two
bird hides overlooking restored shell banks and roosting
to the left, behind the bird hide

This walkway offers great views and access to flora which ranges from
lowland flax, saltmarsh ribbonwood, needle grass, speckled sedge
and cabbage tree
Ihumatao Fossil Forest
At the end of Renton Road, off Ihumatao Road, lies two fossilised forests imprisoned in mud and peat. These huge logs and stumps on the eastern shore of Manukau Harbour are visible at low tide. The older Kauri forest was destroyed by changing groundwater, turning the area into a swamp. The younger forest was obliterated by the eruptions of Ihumatoa or Maungataketake Volcano.
A tree stump in its original position of growth
Fossil leaves in the deposits suggests that the
forest consisted mainly of rimu, hinau and miro,
kauri and tanekaha
The only evidence left of a giant tree that once stood tall. These trees
averaged about 70 centimetres in diameter and few up to 3 metres across
Some fallen trunks are 20 metres in length without a branch
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Suzette Bothma
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