Diamond Head (Leahi) in Honolulu

Diamond Head (Leahi) is a volcanic tuff cone and famous landmark located on the southeastern coast of Oahu, near Waikiki, in Honolulu, Hawaii. The name 'Diamond Head' originated from 19th-century British sailors who mistook the sparkling calcite crystals on its slopes for diamonds. The native Hawaiians called it 'Leahi,' which translates to 'brow of the tuna,' because of the crater's resemblance to the shape of a tuna's dorsal fin. Diamond Head has become an iconic symbol of Hawaii and is a popular hiking destination for tourists and locals alike.

The hike to Diamond Head's peak offers breathtaking panoramic views of the Pacific Ocean, Waikiki, and Honolulu's cityscape. With a 560-foot summit and a trail that spans 1.6 miles round trip, it is a moderately difficult hike, taking an average of 1.5 to 2 hours to complete. The trail was originally created in 1908 as a part of the U.S. Army Coastal Artillery defense system. Along the way, visitors get to explore the historic remnants of military bunkers and an observation deck built in 1910. Diamond Head's unique geological features and its historical significance make it a must-visit destination while on the island of Oahu.