Rediscovering He'eia's Ahupua'a System For Food and Water Resilience

Oct 28, 2026

A Hawaiian nonprofit in He'eia is restoring an old land-management system to grow more local food and protect the community from floods, which is good news for food security and climate resilience on Oahu.

  • Kako'o 'Oiwi manages 405 acres in He'eia using the ahupua'a system, the traditional method of managing land and water from the mountains to the sea.
  • Hawaii currently imports 90% of its goods, even though the islands once sustainably fed over a million people using these same practices.
  • The taro patches (lo'i kalo) do double duty: they grow food and also hold back storm water, trapping sediment and recharging groundwater, which helps protect everyone living downstream.
  • The project runs on strong community and multi-generational support, including local elders, Kamehameha Schools, and private foundations, and it sells food to schools and other farmers to help build a local food economy.
  • Volunteers of all ages help maintain the land, and leaders encourage people elsewhere to start small, like caring for a local park, to build similar community-based systems in their own neighborhoods.

Outlook: Organizers hope to expand this model to other landowners and communities as a long-term approach to food security and flood resilience.

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