Hiking to the 760-foot summit of the iconic Diamond Head (Leahi) volcanic crater rewards travelers with the most legendary panoramic view of Honolulu and the Pacific coastline.

Key Takeaways

  • Book ahead: Non-residents need a timed reservation at gostateparks.hawaii.gov, released up to 30 days out; visitors without one are turned away at the gate.
  • Cost: As of October 2026, entry is $5 per non-resident (age 3 and under free), plus $10 per car if you park inside the crater. Cards only.
  • Timing: The park is open 6:00 AM to 6:00 PM; the last hiking slot is 4:00 PM, and you must arrive within the first 30 minutes of your slot.
  • Bring: A liter of water per person, a hat, sunscreen and closed shoes. The upper switchbacks have almost no shade and the finish is all stairs.

Crucial Diamond Head Reservation Info

All non-Hawaii residents are legally required to make online reservations via the Hawaii State Parks portal (gostateparks.hawaii.gov) up to 30 days in advance ($5 entry per non-resident, plus $10 per vehicle if you park inside the crater). Morning slots between 6:00 AM and 8:00 AM sell out fastest to avoid the midday tropical heat.

Hike Detail Specification
Trail Distance 1.6 miles roundtrip (paved first 0.2 mile, then uneven switchbacks, a lighted tunnel & stairs)
Duration & Difficulty 1.5 to 2 hours total; Moderate difficulty with steep staircase climb
Access from Waikiki 35-minute uphill walk from Queen Kapiolani Hotel, or 7-minute Uber ride
Footwear & Sun Athletic shoes mandatory; no shade on upper switchbacks (bring sunscreen)

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How to Book the Diamond Head Hike: Reservations and Fees

The Diamond Head hike is the one classic Oahu trail you cannot do on a whim. Out-of-state visitors must book through the Hawaii State Parks system at gostateparks.hawaii.gov/diamondhead, and as of October 2026 reservations open up to 30 days in advance.

  • Walk-in or drop-off entry: $5 per non-resident in one-hour entry windows. Choose this if you arrive on foot, by bus, trolley or rideshare.
  • Parking: $10 per vehicle in two-hour windows starting at 6:00 AM (you may book two back-to-back windows), plus the $5 entry for each non-resident in the car. You must drive out by the end of your window.
  • Late arrivals: arrive within the first 30 minutes of your slot or you may be refused entry or parking; no-shows are not refunded.
  • Changes and refunds: refunds are allowed up to 3 days before your date (a $5 cancellation fee applies), and changes are possible until midnight Hawaii time the day before, if space remains.
  • Hawaii residents: free with a state ID or driver’s license and no booking, but out-of-state friends traveling with them still need tickets.

The monument is open daily from 6:00 AM to 6:00 PM, except Christmas and New Year’s Day. The last hiking reservation is 4:00 PM, the last entry on it is 4:30 PM, and the gates lock at 6:00 PM. If the state closes the park for storms, reservations for those days are refunded automatically, minus service charges.

Getting to Diamond Head from Waikiki

The crater sits just east of Waikiki, so skipping the car saves the $10 parking fee and the hunt for a stall.

  • TheBus: Route 2 toward Kahala Mall runs along Kuhio Avenue and Monsarrat Avenue to the Diamond Head Road stops opposite Kapiʻolani Community College and 18th Avenue, roughly 15 minutes from Waikiki. From there, walk up the crater access road and through the tunnel to the trailhead in about 15 to 20 minutes. Since July 1, 2026, fares are $3.25 cash or $3.00 for a two-hour pass on a HOLO card.
  • Waikiki Trolley: the Green (Diamond Head) Line leaves Waikiki Shopping Plaza and reaches the crater in under 30 minutes, but the trolley ticket does not include park entry, so reserve an entry-only slot first. Our Waikiki Trolley guide compares the passes.
  • Rideshare or on foot: drivers can drop you inside the crater, or you can walk up Monsarrat Avenue from Kapahulu in about 35 minutes. Either way you still need an entry reservation.

What to Expect on the Summit Trail

The Leʻahi summit trail is 0.8 mile each way with about 560 feet of elevation gain, and State Parks suggests allowing around two hours. It was built in 1908 as part of Oahu’s coastal defense system; the Fire Control Station at the top, finished in 1911, directed artillery from batteries in Waikiki and Fort Ruger.

  • Only the first 0.2 mile is paved. After that the path is uneven and steep, zigzagging up the inner crater wall.
  • Near the top you climb steep staircases and pass through a lighted 225-foot tunnel. The final tenth of a mile is all stairs before you squeeze through the old bunker onto the rim.
  • The summit platforms look from Koko Head to the Waiʻanae Range, down onto the 1917 Diamond Head Lighthouse and, in winter, sometimes humpback whales offshore.
  • The summit trail is not ADA accessible, although facilities on the crater floor are. No pets except service animals.

Best Time to Go and How to Beat the Heat

Grab the 6:00 AM window if you can: the air is cooler, the light over Waikiki is soft, and you are back down before the tour groups peak. Midday slots are the hottest and most crowded. In the cooler, shorter days of winter, a 2:00 to 4:00 PM slot is a good second choice with golden light on the city. See Waikiki weather by month for the drier seasons.

Afterward, refuel with a plate lunch or the famous blueberry scones at Diamond Head Market and Grill on Monsarrat Avenue, right on the bus route back. If the crater left you wanting a real leg-burner, the Koko Head stairs climb nearly twice as high in less distance, with no reservation required.

Where to Stay Nearby

The Diamond Head end of Waikiki puts you closest to the trail, within walking distance of the Route 2 stops on Kapahulu and Monsarrat avenues. The Queen Kapiolani Hotel faces the crater across Kapiolani Park and is good value for early risers, while the Kaimana Beach Hotel sits on Sans Souci Beach right at the foot of Diamond Head. For more rooms that frame the crater from your lanai, see our list of Diamond Head view hotels.

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Frequently Asked Questions

Do I need a reservation to hike Diamond Head?

Yes, if you are not a Hawaii resident. Every out-of-state visitor needs a timed entry reservation, and drivers also need a parking reservation, booked online at gostateparks.hawaii.gov up to 30 days ahead. Walk-ups are turned away. Hawaii residents with a state ID or driver’s license are exempt, but visitors traveling with them are not.

Can I buy Diamond Head tickets at the gate?

No. As of October 2026 State Parks does not sell walk-up tickets to non-residents; payment is by card through the online system only. If your day is sold out, check again closer to the date, since cancellations made more than 3 days ahead free up slots.

How long does the Diamond Head hike take?

Plan on 1.5 to 2 hours round trip, including time at the summit. The trail is 0.8 mile each way with about 560 feet of gain; fit hikers go faster, but stairs and two-way traffic slow everyone on busy mornings. Add travel time from Waikiki and the 30-minute arrival window.

Is the Diamond Head hike hard?

State Parks rates it moderate. The lower section is easy, but the upper switchbacks are steep, hot and uneven, and the finish is a long flight of stairs through a tunnel and bunker. Kids who hike regularly manage fine; if you have heart or knee issues, go early and slowly.

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