Diamond Head, you can see the whole beach from Diamond Hill. Diamond Hill is not only the beautiful screen of Waikikiki, but also a good place for tourists to hike and climb high. Diamond Mountain was an extinct volcano formed by a volcanic eruption 300,000 years ago. The center of Diamond Mountain is a volcanic vent, and the highest point of 232 m above sea level is the top of Diamond Mountain. We parked at the foot of Diamond Hill. We visited the market of agricultural products which is open every Saturday morning under the hill. Then we climbed on foot. It was a very relaxed exercise. We must climb the top of the mountain on foot. It is impossible to drive up the mountain. The mountain is not high and there are some steps. But it is absolutely worthwhile to have a panoramic view of Waikikiki Beach after climbing the top of the mountain.