A residential area close to Waikiki and Ala Moana, Manoa Valley is known for its frequent rain showers. The area receives rain almost every day, making rainbows a common sight. The valley and surrounding mountains are filled with hiking trails, of which Manoa Falls is the most popular. Located at the end of the valley, this 150-foot waterfall is easily accessible from a 1.5-mile trail. Also nearby is Lyon Arboretum, home of over 5000 native and introduced plant species.