Honouliuli
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Why You Should Visit
Honouliuli Preserve is home to more than 90 rare and endangered plant and animal species. The land once belonged to Hawaiian royalty and was named Honouliuli - meaning dark, dark harbor - for the dark fertile lands that stretch from the waters of Pearl Harbor to the summit of the Wai`anae Mountains.
Location
Leeward O`ahu, on the southeast slope of the Wai`anae Mountains
Size
3,582 acres
How to Prepare for Your Visit
Nature Conservancy staff and volunteers lead monthly hikes on the Palikea Ridge Trail in Honouliuli Preserve. An events schedule is available here. For more information on visiting this preserve, call our hike line at (808) 587-6220.
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What to See: Plants

© Phil Spalding III/TNC
The preserve is home to rare plants such as mints and lobelias.
What to See: Animals
Honouliuli Preserve protects a native land snail species that is found nowhere else on Earth. Its boundaries contain one of the last remaining habitats on O'ahu for native forest birds and for the Hawaiian owl (pueo), revered as a guardian spirit or `aumakua by ancient Hawaiians. Here, too, lives the flycatching `elepaio, a singing land bird once revered by Hawaiian canoe builders. Honeycreepers also inhabit the forests of Honouliuli, along with the crimson-feathered `apapane and the yellow `amakihi.
Why the Conservancy Selected This Site
The forest contains some of the last remnants of a diverse native ecosystem.
What the Conservancy Has Done/Is Doing
Honouliuli Preserve is more than a refuge for rare and endangered plants and animals. It is also an area for research and education, community service, cultural preservation, and enjoyment of open spaces. A portion of the Honouliuli Preserve is managed in partnership with the State Department of Land and Natural Resources through the Forest Stewardship Program. While our work protects unique rare and endangered species, the heart of our management activities lies in the restoration of native forest habitat, where these species may flourish once again.