Lyon Arboretum is part of the University of Hawaiʻi and a public botanical garden. We are nestled in the back of Mānoa Valley, just five miles from the bustle of Waikiki. Lyon Arboretum has over seven miles of hiking trails and boasts more than 6,000 taxa of tropical and sub-tropical plants on our nearly 200 acres.

To learn more, click on the topics on the navigation menu above.


  • Open to the public Monday through Friday from 9 am until 3 pm, closed on weekends, State and Federal holidays . 
  • Admission is free, but donations are greatly appreciated. The suggested donation amount is $10 per person.
  • Reservations are required. Reservations open only one week in advance on the Friday before.

Make your reservation on Eventbrite at the link below. 

Questions regarding reservations can be directed to our Main Office at (808) 988-0456. Mahalo! 

(Last updated: 5/23/24


Now Hiring!

Click on the links for more information about the positions and to apply. Go to our Career page for general information about our opportunities at Lyon.

Senior Research Associate Position: This rare staff position is now open. Help is needed to oversee the development and management of the living plant collection records and data. More information here: Grounds Senior Research Position

Lyon landscape on a sunny day

Student Work Position: The Grounds Department is seeking to fill their Landscape Maintenance student work positions. Any UH system student can apply. If you would like to learn more, click here: Student Work Positions

Camps and School Tours

Summer Nature Camp: Registration is now closed. The next camp is our Fall Nature Camp. To learn more about our camps in general, click here: LYON NATURE DAY CAMPS

School Tours: Currently we are booking only for Summer 2024. School tour requests for SY 2024-2025 will open July 29th. More info here: LYON SCHOOL TOURS


  • June 11th, 2024: Holiday observance
  • July 4, 2024: Holiday observance
  • July 8th – 12th: Internal operations
  • August 16, 2024: Holiday observance

Click here to view the Events and Closures Calendar


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