He‘eia National Estuarine Research Reserve

The newest member of our network, Hawaii’s He‘eia reserve was established in 2017. It encompasses 1,385 acres of unique and diverse upland, estuarine, and marine habitats within the He‘eia estuary and Kāne‘ohe Bay. It protects features such as the He‘eia Stream, coral reefs, sand flats, and traditional agricultural and heritage lands, such as the He‘eia Fishpond. Reserve lands support wildlife, including the federally endangered Hawaiian stilt, moorhen, coot, duck, and hoary bat.

Marine waters make up the largest component of the reserve and feature Moku o Lo‘e (Coconut Island), home to the University of Hawai‘i Institute of Marine Biology. Coconut Island is surrounded by the Hawai‘i Marine Laboratory Refuge, which includes the most pristine coral reefs in the site.

This reserve’s programming is under development. Please check back in as more information becomes available.

Visit the Reserve's Website

Vital Stats

  • State: Hawaii
  • State Partner:

    State of Hawaii through the University of Hawai’i Institute of Marine Biology

  • Acreage: 1,385
  • Habitats: Upland, estuarine, and marine habitats, coral reefs, and sand flats
  • Designated: 2017
  • Site Profile: View
The He’eia reserve participates in the System-Wide Monitoring Program (SWMP), which collects, analyzes, and makes available weather, water quality, and nutrient data from all National Estuarine Research Reserves. Learn more


The He’eia reserve is part of the Hawaiʻi Institute of Marine Biology. Families, community groups, and individuals are welcomed through our Community Education Programs and tours.


The He’eia reserve’s programming is under development. Please check back to see how you can help.

Become a Friend

This reserve currently does not have a formal friends organization. Please stay tuned for more information.


T: (808) 236-7401
E: himb@hawaii.edu