Mar 13, 2017. Koko Head stairs are one of Oahu's most popular hiking trails. Just over 1200 feet to the top offers amazing views of the south shore of the. Spooky Walking Tours. Sweating off those meals is easy, provided you love ghost tales. This island is rich in history and legend, and Oahu Ghost Tours offer an amazing way to learn about the legend of the Night Marchers and…