Keeping Hawai`i clean,
green, and beautiful since 1912
THE OUTDOOR CIRCLE
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      • Bibliography/Sources
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    • Future Proofing Hawaiʻi’s Urban Forests
    • ​Green and Cool Hawaiʻi
    • ​Historic Trees of Banyan Drive
    • Majesty III - Exceptional Trees of Hawaiʻi Book
    • Reimagining Weed Circle – The Gateway to Haleʻiwa Town
    • Current Bids
    • ​Coconut Palm Sanctuary
    • "Valuing Trees” University Module
    • Collaborators of Past Outdoor Circle Initiatives >
      • Google Trekker
      • Kailua Citizen Forester Program
      • Carbon Neutrality Challenge
      • ​Walking Tours of the Trees of Greater Waikiki
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    • Exceptional Tree Initiative >
      • How to Nominate an Exceptional Tree
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      • Christine Snyder Tree Memorials
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  • Signage
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    • SAVE ANTI-BILLBOARD LAWS
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  • Resources
    • Plant Resources
    • Tree Information
    • Signage
    • Development Plans
    • Current Issues >
      • Light Pollution >
        • Environmental Headlines
  • Steve Mechler In Memoriam
  • 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
    • Free Tree Giveaways
    • Planting Events
    • ​​Greening Hawaiʻi’s Public Schools
    • ​Lahaina Fire Recovery
    • ​Determining the Public’s Perception of Urban Trees
    • Future Proofing Hawaiʻi’s Urban Forests
    • ​Green and Cool Hawaiʻi
    • ​Historic Trees of Banyan Drive
    • Majesty III - Exceptional Trees of Hawaiʻi Book
    • Reimagining Weed Circle – The Gateway to Haleʻiwa Town
    • Current Bids
    • ​Coconut Palm Sanctuary
    • "Valuing Trees” University Module
    • Collaborators of Past Outdoor Circle Initiatives >
      • Google Trekker
      • Kailua Citizen Forester Program
      • Carbon Neutrality Challenge
      • ​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
      • Exceptional Tree Walking Tour Brochure - Downtown Honolulu and Waikiki
      • Tree Mapping - Get Involved!
    • Exceptional Tree Map
    • Christine Snyder >
      • Christine Snyder Tree Memorials
    • Tree Reviews & Inquiries
    • Report a Problem
  • Signage
    • Signage
    • Political Campaign Signage
    • SAVE ANTI-BILLBOARD LAWS
    • Report a Problem
  • Resources
    • Plant Resources
    • Tree Information
    • Signage
    • Development Plans
    • Current Issues >
      • Light Pollution >
        • Environmental Headlines
  • Steve Mechler In Memoriam
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Welcome to The Outdoor Circle!

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​Our Mission
To keep Hawai‘i clean, green, and beautiful by preserving, protecting, and enhancing our environment. 

Our Vision

Hawai‘i is recognized as a model of effective environmental sustainability. A lei of green encircles each island. Parks, greenways, and bikeways are plentiful; our streets are lined with appropriate and well-maintained trees. Wiring is place underground and signage is at a minimum. The Outdoor Circle is the essential resources in matters relating to our mission. 
​
Your membership or donation makes you a partner in helping keep Hawai‘i Clean, Green and Beautiful.
Please join us in protecting the environmental health and well-being of this place we cherish!
JOIN OR RENEW YOUR MEMBERSHIP TO THE OUTDOOR CIRCLE
Donate to The Outdoor Circle Online
Donate to the outdoor circle by mail

In Memoriam: Cheryl Langton

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It is with a heavy heart that the Waimea Branch announced the passing of Cheryl Langton, their long-time President. Her family is planning a Celebration of Life at Ulu Lau'au, the Waimea Nature Park, on Sunday, September 27th, at 10:00 am. Cheryl’s dedication to the park will be honored by the branch where they will unveil a plaque in appreciation of her years of service to the park and the community. She was also a long-time board member of The Outdoor Circle and leaves a lasting legacy to the branch and to the organization as a whole.

Cheryl Langton's obituary
If you would like to make a donation in memory of Cheryl, designate the Waimea Branch:
Donate to the Waimea Branch in memory of Cheryl Langton

Meet our Board of Directors ~ Installed at the Annual Meeting in August.
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TOC Board of Directors 2026-27

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MAKE A DONATION TO OUR KEEP HAWAI‘I BEAUTIFUL CAMPAIGN
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Over 114 Years of Keeping Hawai‘i Clean, Green and Beautiful
The Outdoor Circle has been protecting Hawai‘i's environment by preserving and planting trees, protecting view planes,
providing outreach in our communities to educate future generations, and being an advocate for sound legislative policies
that ensure our islands are livable and sustainable.
 
We depend on your donations to continue our mission of keeping Hawai‘i the beautiful, special place we all love.
Please take a moment to make your tax-deductible gift now.
Donations in any amount are greatly appreciated.


Would you like to see a few of our accomplishments of 2025?
​
You may make a donation in honor or in memory of a friend or family member,
or give a gift of membership to someone who cares about Hawai‘i's environment.
We will be happy to send a note acknowledging your thoughtful gift.

Donations in any amount are greatly appreciated.
Thank you for doing your part to keep the vision of our Founders thriving for many generations to come!
Learn more about our Keep Hawai‘i Beautiful Campaign
DONATE ONLINE
DONATE BY MAIL
Thank you for supporting the enduring mission and vision of our founders!

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Did you know The Outdoor Circle was started by seven women in 1912 ~
​before they were even legally allowed to vote?

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Learn More About our Founders and TOC's History

Testimonials
"I joined and donated not just because I support your organization's mission and work, but also because I have personally benefitted from the organization's work. I work as a tour guide and visitors consistently mention how lovely the trees are, and how wonderful it is to not see billboards.

I was also the beneficiary of a one-time scholarship award while studying at WCC. I got my degree in Arboriculture, and have gone on to use it both in my visitor industry life, as well as my work in human services."
                                                                                                                                                        - JH

Collaborative Support
Our efforts statewide have been in collaboration with and funded through City, County and State entities, foundations, private corporations and businesses, private donations, and grants.

Major financial supporters have included the State of Hawaii, County of Hawaii, Honolulu City and County, Hawaiian Electric Company, Inc., Kaneohe Ranch, Alexander & Baldwin, 
Inc., General Growth Properties, Enterprise Car Rental, International Paper, Fed Ex, Hardware Hawaii, BOSH Inc, Adventist Health Castle, Prisanlee Fund, Poha Fund, Richard and Esther Wong Fund, Women’s Fund of Hawaii, Kamehameha Schools, Harold K.L. Castle Foundation, Armstrong Foundation, Hawaii Community Foundation, Arbor Day Foundation, MacNaughton Group Foundation, Padosi Foundation, Atherton Family Foundation, Zadoc and Lawrence Brown Foundation, LGA Family Foundation, Domestic Violence Action Center.

Donate to The Outdoor Circle
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]