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Diamond Head State Monument
Diamond Head State Monument is Hawaii's most recognized landmark featuring a historic 0.8-mile hiking trail with stunning coastal views and military history on Oahu's eastern edge. The monument encompasses over 475 acres of a crater formed 300,000 years ago, with visitor access requiring reservations for non-residents and operating hours from 6:00 am to 6:00 pm daily.
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Summary
Diamond Head State Monument is Hawaii's most recognized landmark featuring a historic 0.8-mile hiking trail with stunning coastal views and military history on Oahu's eastern edge. The monument encompasses over 475 acres of a crater formed 300,000 years ago, with visitor access requiring reservations for non-residents and operating hours from 6:00 am to 6:00 pm daily.
Tags
diamond-head · hawaii-state-park · hiking-trail · oahu · waikiki · crater · military-history
Key entities
Diamond Head (location, 0.99) · Oahu (location, 0.99) · Waikiki (location, 0.98) · Hawaii (location, 0.99) · Fort Ruger (location, 0.85) · Koko Head (location, 0.87) · Wai'anae (location, 0.87) · Hawaii State Parks (organization, 0.92) · Fire Control Station (concept, 0.88) · tuff (concept, 0.82) · storm-related closure (event, 0.75)
Classification
reference · language en · status final
Provenance
claude-haiku-4-5 via @stacklist/be@0.1.0, confidence 0.85, 13 Oct 2026