Manoa's verdant tropical valley landscape, complete with hiking trails, an arboretum, and a botanical garden, makes it hard to believe that downtown Honolulu is just 5 miles (8 kilometers) away. A leisurely hike through dense foliage takes you to Manoa Falls, an impressive 150-foot (46-meter) waterfall that’s one of Oahu's most accessible. The quiet neighborhood also houses the University of Hawaii's campus, which features a 200-acre (81 hectare) on-site arboretum with over 5,500 tropical and subtropical flora and fauna, including its own waterfall, ʻAihualama Falls.