[1] The Lyon Arboretum, located in the Manoa Valley at the base of the trail is another popular tourist attraction and aims to preserve endangered Hawaiian plants.

Many people hike the trail to see the Manoa Falls, a 150-foot waterfall[2] that empties into a small pool of water.

The Manoa Falls Trail is very humid and frequent rain showers throughout the area are very common.

[9] College students visit the Manoa Falls trail often for research and educational purposes.

The hau trees can be distinguished by their flowers which are bright yellow with a dark red center, very similar to those of other hibiscus species.

The wood found on the trails was used by earlier Hawaiians for making canoes, the bark was sometimes used for sandals, and the tree sap was used as a laxative.

[3] As the legend tells, the direct path of the Night Marchers is the Banyan Tree located in the beginning of the Manoa Falls Trail.

[citation needed] On June 15, 2016 19-year-old Kristi Takanishi, a 2015 valedictorian from Kaiser high school in Honolulu Hawaii, fell from the top of Manoa Falls and died two days later.

Sources say she was taking pictures with friends when she slipped and fell off the edge, 200 ft down the waterfall into the small pool of water.

[10] The Hawaiian State Department of Health discourages swimming and wading in the small pools surrounding the trail and waterfall.

This is because of a bacterial disease called Leptospirosis, which is common in tropical climates such as Hawaii and is found in freshwater.

The arboretum works to preserve and restore Hawaii's tropical forests, and many endangered plant species.

It also functions as both research and academic resources by providing different programs that develop innovations to restore endangered native Hawaiian plants.