Please Note: Diamond Head trails are open to all visitors who pay a park fee; the Go Oahu Card covers this park fee and transportation to and from Diamond Head.
Rising 760 feet with a 3,520-foot crater, this volcano is nothing short of breathtaking. Climb to the top for a panoramic view of Honolulu, Waikiki Beach, the Pacific Ocean and more. (By the way, don't worry: Diamond Head has been extinct for 150,000 years.)
Mt. Leahi is the most famous volcanic crater on earth. Situated at the southeastern coast of Oahu at Waikiki’s edge, this extinct volcano, better known as Diamond Head, has been inactive for 150,000 years. Thanks to Kaimana Tours, you can hike to the top of Diamond Head, taking in views from its 760-foot summit and marveling at the crater, a gaping canyon that is 3,520 feet in diameter.
The Mt. Leahi volcano was seen in the early 1800s by British sailors, who mistakenly believed the calcite crystals in its lava rocks to be diamonds, thus branding it with its long-lived nickname. Diamond Head is just part of a large complex of cones and vents collectively known as the Honolulu Volcanic Series, the eruptions of which are reputed to have created many of Oahu’s landmarks, including Punchbowl Crater, Hanauma Bay, Koko Head, and Mānana Island. Diamond Head is one of those creations, and is estimated to be one of the younger formations in the mass—the Koolau Range is said to be 2.6 million years old, but Diamond Head is put at a spritely 150,000 years old.