Lyon Arboretum Loop

Please note the original date of this hike has been changed from December 8th to the 15th due to a closure at Lyon Arboretum. 

The Harold L. Lyon Arboretum is a 200-acre arboretum and botanical garden that was established in 1918 as the Manoa Arboretum to demonstrate watershed restoration and test various tree species for reforestation. The Lyon Arboretum continues to develop an extensive tropical plant collection, emphasizing native plants. The arboretum contains over 15,000 plant acquisitions and also maintains an active seed bank. The hike (known as Dick’s Loop – named after Dick Carlson – pictured below – a volunteer who linked many trails together to create this loop) is a pleasant trail at the base of the Ko’olau Mountains, touching upon Aihualama Falls, blue marble trees with spectacular buttress roots, and the biblical Joshua tree.* 

A $10 donation for the arboretum is requested.

For non-members joining HTMC on this hike and additional $5 donation is requested for guests ages 18 or over.

Elevation Gain: 927 feet.

Trail Conditions: slippery, uneven footing, rough, slick, and muddy in spots, occasional steep scramble and mosquitos. The trail is confusing so it is recommended that you stay with the leader. 

Trail Features: rare square stemmed bamboo, labeled plants, a tall majestic waterfall, and a wet, green lush forest.

Trail Route: loop.

Native Flora & Fauna: a native plant garden; non-native: palms, gingers, heliconias, bromeliads, and aroids.

Moku & Ahupua’a: Kona & Waikiki.

Interesting Note: Lyon introduced Mule’s Foot Fern to Hawai’i in 1927, which escaped the arboretum.

*The club takes no responsibility and disclaims any liability for the contents of hike descriptions including any inaccuracies, omissions, errors, misleading statements, incompleteness, or incorrect information. (click here to read our full disclaimer)