Restore Rainforest Habitat & Recover a Cultural Heritage Site

Kaiaulu 'o Kahalu’u

At the base of the Ko’olau Cliffs, in upper ‘Āhuimana, there is a historic, well-preserved, piece of Native Hawaiian ingenuity, in the form of a traditional tiered lo’i system, which is part of the largest intact tiered lo’i on O’ahu and the best example of ancient Hawaiian expertise in farming engineering. 

Over the past nearly 200 years, roughly 200 acres of this land was acquired by different people, and witnessed an influx of both agricultural and other civic development. The entire surrounding area was scraped and graded, but the terraces along the upper ‘Āhuimana stream were left intact.

Come join us and help return this fallow site to its original cultural use and restore habitat for the birds who used to frequent the area. Stream and trail restoration will teach about how ancient Hawaiians cultivated taro and learn the legends of this once fertile land.

Let’s make it more accessible to Native Hawaiians and the Kahalu’u Community!


  • Immerse in a vast forest
  • Restore a cultural site
  • Learn about ancient Hawaiian’s Loi system



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