Kualoa Ranch is a one-stop adventure playground and a highlight for many travelers to Oahu. Stretching from the verdant folds of the Koolau Mountains to the tropical sea, the 4,000-acre (1,619-hectare) working cattle ranch is one of the largest tracts of accessible nature on Oahu and offers visitors a huge variety of ways to interact with Hawaii’s stunning landscapes, from ATV rides and zipline adventures to film site tours. The property is divided into two areas: the northerly Kaaawa Valley with its many movie locations, and Hakipuu Valley, fronted by an 800-year-old Hawaiian fishpond and the site’s Secret Island Beach.