Join us for the Diamond Head State Monument volunteer workday! We will be working on caring for the native plant species present in our park garden, found in multiple locations throughout the crater in Diamond Head State Monument. Please sign up for the event and complete the waiver linked here! Activities: Gardening. Please be aware...

HHHRC Partners with the Food Bank of Hawaii to offer free food to people in need.

Kaha Native Plant Garden: This project is a living example of how individual homeowners can help improve the local environment through the use of native vegetation and xeriscape gardens. The project replaced grass and invasive species along 150 yards of stream bank with native Hawaiian plants which can be used for soil stabilization, biofiltration and water conservation. Visitors can...