Lyon Arboretum

Lyon Arboretum at 3860 Manoa Road in Manoa Valley, Honolulu, Hawaii, is a botanical garden and research facility of the University of Hawaii at Manoa. It occupies about 193 acres of rainforest at the head of the valley and holds thousands of tropical plant species, including palms, ferns, gingers, bromeliads, aroids and a large collection of native Hawaiian plants. Visitors follow trails past a Hawaiian ethnobotanical garden showing canoe plants brought by Polynesian settlers, a native Hawaiian section, a palm collection, a ti garden and a short walk to Aihualama Falls viewing points along the trail network. Paths include a main loop and several side routes through shady forest, and rain is frequent, which keeps the vegetation lush. A visitor center provides maps and sign-in. The garden is quieter than nearby Manoa Falls Trail, and it appeals to plant enthusiasts and bird watchers. Visits generally take one and a half to two hours, and the best photo subjects are the fern groves, heliconias and bamboo. Entry is free with a suggested donation of $10 per person. It is open Monday through Friday from 9:00 AM to 3:00 PM, and closed weekends and state and federal holidays, with occasional construction closures. Weekday mornings are the quietest. Visitors should wear closed shoes with grip for muddy trails, carry a light jacket or rain layer, and bring insect repellent. Rideshare from Waikiki is the easiest approach, and TheBus Route 5 serves Manoa Valley. Check hours before traveling, because the schedule can change.