Diamond Head, an iconic volcanic crater on Oahu, is one of Hawaii's most famous geological landmarks.

Diamond Head is an iconic geological formation located on the island of Oahu, near Honolulu. This extinct volcanic crater, formed over 300,000 years ago, stands at 761 feet tall and offers panoramic views of the surrounding area, including Waikiki Beach and the Pacific Ocean. The landmark's name comes from early British sailors who mistakenly thought the calcite crystals inside the crater were diamonds. Today, it is a popular hiking destination, attracting tourists eager to climb its steep trail and take in the breathtaking scenery. Diamond Head is one of Hawaii’s most recognizable symbols.