About Diamond Head State Monument:
Diamond Head is a tuff cone in the Honolulu Volcanic Series. The eruption that built up this crater probably lasted only a few days, but the beauty it created will last much longer. This 300,000 year old crater remains an iconic feature of the island.
Today, visitors can hike to the top of this national park for breathtaking views of the Pacific Ocean and the island of Honolulu. The distance to the top may not be long, less than a mile, but many find this hike to be strenuous. That is largely due to the steep ascent and uneven path. The hike takes most visitors one and a half to two hours to complete. Though it may be difficult, the trek to the top is definitely worth it, for the view is truly remarkable. You won't want to forget your camera or your water bottle!