Diamond Head State Monument

Overview

Diamond Head State Monument is an iconic volcanic tuff cone offering breathtaking panoramic views of Waikiki and the Pacific Ocean. The historic trail to the summit is a quintessential Oahu experience.

Highlights

• Summit Lookout: Spectacular 360-degree views of Honolulu and the southern coastline.
• Fire Control Station: World War II-era military bunkers and tunnels along the trail.
• Crater Floor: The vast inner caldera of the dormant volcano.

History

Known to Hawaiians as Lēʻahi, Diamond Head was formed about 300,000 years ago during a rapid, explosive eruption.

Visitor Tips

• Reservations Required: Out-of-state visitors must book reservations in advance.
• Bring Water: The steep hike can be hot, especially in the afternoon.
• Duration: 1.5–2 hours.