Keeping Hawai`i clean,
green, and beautiful since 1912
THE OUTDOOR CIRCLE
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    • Tree Information
    • Exceptional Tree Initiative >
      • How to Nominate an Exceptional Tree
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        • Bibliography/Sources
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      • Tree Mapping - Get Involved!
    • Exceptional Tree Map
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    • Tree Reviews & Inquiries
    • Report a Problem
  • Signage
    • Signage
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    • SAVE ANTI-BILLBOARD LAWS
    • Report a Problem
  • Home
  • About Us
    • History of TOC >
      • TOC Presidents
    • TOC Archives
    • TOC Policy Positions
    • Board of Directors
    • TOC In The News
    • Newsletters >
      • The Greenleaf
      • North Shore Outdoor Circle
      • Lani-Kailua Outdoor Circle
      • Waimea Outdoor Circle
      • Greater Waikiki Outdoor Circle
    • Annual Reports, Strategic Plans, and Brochures
    • Events
    • The Online Circle - Environmental Education Blog
    • Contact
  • Programs
    • Exceptional Tree Initiative >
      • Bibliography/Sources
    • Collaborators of Past Outdoor Circle Initiatives
    • Carbon Neutrality Challenge
    • Google Trekker
    • Kailua Citizen Forester Program
    • ​Walking Tours of the Trees of Greater Waikiki
  • Membership/Donations
    • Membership/Join Us
    • Ways to Give
    • Planned Giving Opportunities
    • Keep Hawaii Beautiful
    • Foodland Give Aloha
    • Volunteer
  • Branches
    • Branches
    • East Hawaii Island
    • East Honolulu
    • Kaneohe
    • Kauai
    • Kona
    • Lani-Kailua
    • Manoa
    • North Shore
    • Waikiki
    • Waikoloa
    • Waimea >
      • Waimea Nature Park Images
  • Trees
    • Tree Information
    • Exceptional Tree Initiative >
      • How to Nominate an Exceptional Tree
      • Exceptional Tree Map
      • Exceptional Tree Library >
        • Bibliography/Sources
      • Exceptional Tree Gallery
      • Tree Mapping - Get Involved!
    • Exceptional Tree Map
    • Christine Snyder
    • Tree Reviews & Inquiries
    • Report a Problem
  • Signage
    • Signage
    • Political Campaign Signage
    • SAVE ANTI-BILLBOARD LAWS
    • Report a Problem
Click Here to Find an Arborist Using the ISA's "Find an Arborist" Database*
*Please note that The Outdoor Circle does not endorse any of the arborists from the ISA link above and specifically disclaims any liability or responsibility for any actions or statements made by any individuals listed.*

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    Exceptional Trees of Honolulu Brochure.
    Click on the brochure to download.

Trees are Important to Us!

Trees are important to The Outdoor Circle and its members. ​They provide shade to our cities and greenery to our island landscapes. The Outdoor Circle advocates for the planting and protection of trees in Hawai‘i, and serves as a resource for those who work with trees or want to save one. 
​Our Exceptional Tree Initiative aims to document Hawai‘i's most notable trees and educate the public on their benefits. 
Click Here to Visit Our "Tree Resources" Section

The Exceptional Tree Initiative
​

In 1975, the Hawai‘i Legislature passed the Exceptional Tree Act (Act 105) to protect designated trees—both public and private—from improper trimming and unnecessary removal. Today, we are helping to grow this list of protected trees and document their positive impact on our local environment. As part of this initiative, we've developed a map of Hawai‘i's Exceptional Trees--
the first of its kind! View the Exceptional Tree Map.
Exceptional Trees Additional Information
Exceptional Tree Map

Inquire about a Tree Review

​If you are a member of the public, landscaper, engineer, or other professional working on a project affecting trees and would like us a review a particular tree (or trees) prior to removal, trimming, or for other reasons concerning tree related issues, please fill out this form to get in touch with our Tree Committee.
Tree Reviews & Inquiries
GOV DEPARTMENT CONTACT INFO FOR TREE INQUIRES (OAHU)

All information on this website is the property of The Outdoor Circle and may not be used without written consent.
Copyright © 2026 The Outdoor Circle. All Rights Reserved.
The Outdoor Circle
1314 South King Street, Suite 306
Honolulu, HI 96814
Tel: 808-593-0300
[email protected]