Diamond Head is a 300,000-year-old volcanic crater and Honolulu's most iconic landmark. The moderate hike leads to a summit offering panoramic views of Waikiki, Honolulu, and the Pacific Ocean. Once a strategic military lookout, the crater features historic bunkers and tunnels from WWII.
Online reservation required: $10 + $5 per person. Hawaii residents free with proof of residency.
Early morning (6-7 AM) for cooler temperatures and fewer crowds. Book reservations up to 30 days in advance. Arrive within first 30 minutes of your slot.
faq.subtitle Diamond Head State Monument
The trail is moderately challenging: 1.3 km round trip with 170 m elevation gain. Takes about 1 hour. Includes stairs, steep switchbacks, and narrow tunnels. Most people in reasonable fitness can complete it.
Yes, online reservation is required. Book up to 30 days in advance at gostateparks.hawaii.gov/diamondhead. You have a 2-hour window and must arrive within the first 30 minutes or may be denied entry.
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