Kauaʻi · Hawaiʻi

A Model Ecological Farm

Where the land, the water, and the herd feed one another.

KOA is a living ahupuaʻa on Kauaʻi—water buffalo restoring the soil, kalo growing in spring-fed loʻi, and hundreds of fruit trees, all cared for as one connected system.

Meet the farm Connect with us

The vision

Farming the whole system, not just the crop.

KOA—Kauaʻi Organic Agroecosystems—is a model ecological farm built on a simple, old idea: that a piece of land thrives when every part of it is in relationship with every other part. Water feeds the kalo; the kalo feeds the people; the buffalo build the soil; the soil feeds the trees.

Set on roughly twenty-five acres of leased Grove Farm land in the Līhuʻe region of Kauaʻi, the farm is a working example of regenerative agriculture rooted in the Hawaiian ahupuaʻa—the traditional practice of caring for the land in one continuous flow from the mountains to the sea.

A newly planted kalo (taro) field at KOA farm

The herd

The water buffalo of Kauaʻi.

Water buffalo were once on Hawaiʻi’s list of restricted animals. After roughly three years of work with the state Department of Agriculture, the first four—pregnant females—arrived from Arkansas in 2019. Don Heacock called it “a dream come true.”

That small herd has since grown to around fifty, and new animals have been brought in to widen the bloodlines and keep the herd genetically strong. Moved paddock to paddock, the buffalo graze down invasive grasses, press seed and nutrients back into the earth, and build living soil that stores carbon—while pointing toward a future of island-raised dairy that never has to be shipped across an ocean.

pregnant females arrived in 2019

~50

in the herd today

acres farmed as one system

∞

new bloodlines for diversity

A photo of the herd goes here Drop in your favorite water-buffalo image from @koa.farms and it will fill this space beautifully.

A child on a grass path between rows of kalo at KOA

Kalo · taro

Rows of kalo, fed by living water.

Kalo is the heart of the farm and the heart of Hawaiʻi—the plant from which, in the old stories, the Hawaiian people themselves are descended. At KOA it grows in long, spring-fed rows, tended by hand, harvested into muddy bundles of corms that carry generations of nourishment.

Around the loʻi the farm also cultivates ʻawa and other traditional and useful plants, alongside aquaponic systems where tilapia and taro grow together in one balanced loop.

From this ground

Hundreds of fruit trees, and so much more.

Harvest at KOA: taro, apple bananas, greens and squash

The daily harvest

Apple bananas, leafy greens, squash, and baskets of freshly pulled kalo—an ever-changing abundance from a farm grown in relationship with the land.

The orchard

Hundreds of fruit trees—papaya, banana and more—woven through the farm to shelter the soil, feed the community, and keep the whole system in bloom.

Peppers & more

Sweet peppers and sun-dried Hawaiian chili peppers among the many crops raised without synthetic chemicals, the organic way.

Aquaponics

Fish and plants, one balanced loop.

Drawing on a lifetime of aquatic science, KOA raises tilapia in aquaponic systems where the water that nourishes the fish also feeds the plants, and the plants clean the water in return—a small, closed circle that mirrors how the whole farm is meant to work.

Tilapia raised in aquaponic systems at KOA

The farmer

Don ‘Lalakea’ Heacock

Aquatic Biologist · Founder of KOA

For roughly four decades, Don Heacock served as an aquatic biologist with Hawaiʻi’s Department of Land and Natural Resources—the Kauaʻi district biologist who spent his career studying the island’s streams, reefs and watersheds and the delicate connections that keep them alive.

KOA is where he brings that science home to the land. Guided by the Hawaiian ahupuaʻa system—caring for a place in one unbroken flow from mountain to sea—he has built a farm that treats water buffalo, kalo, fruit trees, fish and soil as a single living community. His work makes the case, patiently and by example, for a way of farming that heals the ground it grows on.

The loʻi and lands of KOA farm on Kauaʻi

Learn & stay

Come put your hands in the soil.

KOA welcomes WWOOF (World Wide Opportunities on Organic Farms) and WorkAway volunteers—people who trade a share of the daily work for something rare: the chance to learn directly from Don’s immense knowledge of Kauaʻi’s indigenous and canoe plants, kalo cultivation, aquaponics, and the ahupuaʻa way of caring for land and water as one.

Whether you stay a week or a season, you leave knowing the land—and yourself—a little differently.

Ask about volunteering WWOOF & WorkAway

The farm, in pictures

A few moments from the land.

An open-air bamboo hale beneath a great tree at KOA — The gathering hale, beneath the trees

Kalo fields, the plantation house and mountain, with ducks on the grass — Ducks along the loʻi, house and mountain beyond

A dog swimming in a spring-fed pool in the jungle at KOA — Cooling off in a spring-fed pool

Hawaiian chili peppers drying in the sun — Hawaiian chili peppers, drying in the sun

Connect

Come know the farm.

Follow the herd, the harvests and the seasons on Instagram—or reach out to learn about visits, volunteering, and the farm’s work in regenerative agriculture and island-raised dairy.

@koa.farms on Instagram [add contact email]

Kauaʻi · Hawaiʻi

For Peta — things to confirm or fill in before publishing: the contact email (and phone, if wanted); whether to mention visits/tours, volunteering, or a raw-milk herd-share; a real water-buffalo photo for the herd section; and confirm the current herd number, acreage and Grove Farm/Līhuʻe location are still accurate. Everything factual here is drawn from published interviews with Don; anything you’re unsure of, tell me and I’ll adjust.