The dramatic ridged cliffs of the Koʻolau Range are arrayed in front of you like an Imax screen at Oʻahu’s largest botanical garden. It encompasses 400 acres of trees and flowers from around the world. Plants are arranged in six regionally themed areas accessible by car. Pick up a map at the small visitor center, located at the far end of Luluku Rd, over 1 mile mauka (inland) from the Kamehameha Hwy.
Among the features in the gardens is a fascinating display called 'What would you bring in your canoe?' It shows various Polynesian plants and details their uses. Call ahead to register for free two-hour guided nature walks (10am Saturday and 1pm Sunday).