Diamond Head Tunnel HI
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Description: Diamond Head Tunnel in Hawaii is a significant landmark located on the island of Oahu, providing access to the interior of the iconic Diamond Head Crater, also known as Leahi. Constructed in 1908 as part of the U.S. Army Coastal Artillery defense system, the tunnel was initially designed to facilitate military operations and now serves as the main entrance for visitors to the Diamond Head State Monument. The tunnel, which is approximately 225 feet long, leads to a series of hiking trails that offer panoramic views of Honolulu and the Pacific Ocean. Today, it stands as a testament to Hawaii's rich history and natural beauty, attracting thousands of tourists and hikers who come to explore the crater's unique geological features and historical significance.