**IMPORTANT PARK NOTICES**
Monitor local surf and weather reports prior to your park visit.
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[KAUA'I] update 10/1/24 - KALALAU TRAIL SECTION OF THE NĀPALI COAST STATE WILDERNESS PARK HAS REOPENED.
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[OʻAHU] update 9/28/24 – Wahiawā Freshwater State Recreation Area: The boat ramp and lower parking lot will be CLOSED on October 5, 2024 for the Day at the Lake Community Event, free event open to the public from 9am to 4pm, no reservations needed – there will be boat rides, environmental education exhibitors, entertainment, and food. More information at dayatthelake.org
[OʻAHU] UPDATED 9/3/24 – Kaʻena Point State Park, Mokuleʻia Section: Due to severe staff shortages, the processing of vehicular access permits may experience delays. We appreciate your understanding and patience during this time.
[KAUAʻI] UPDATED 6/18/24 – Kōkeʻe State Park: The gate to Puʻu O Kila Lookout will be closed to vehicular traffic due to road repairs beginning 3/19/24. The lookout will still be accessible by pedestrians, parking is available at Kalalau lookout.
Diamond Head Summit Trail
Trail Length | 1.6 miles (round trip) |
Time | 2 hours |
Activity | Pedestrian |
Difficulty | Moderate |
Terrain | Hot, Dry, Slopes |
Elevation Gain | 560 ft |
Trail Brochure | Diamond Head State Monument |
Park Name | Diamond Head State Monument |
Description
The trail to the summit of Leʻahi (Hawaiian name for Diamond Head Crater) was built in 1908 as part of Oʻahu’s coastal defense system. Completed in 1911, the Fire Control Station at the summit directed artillery fire from batteries in Waikiki and Fort Ruger outside Diamond Head crater. The walk is a glimpse into the geological and military history of this volcanic crater. Much of the trail is a natural tuff surface with many switchbacks traversing the steep interior slope of the crater wall. The ascent continues up steep stairs and through a lighted 225-foot tunnel. At the summit, you’ll see bunkers on the crater rim and a navigational lighthouse built in 1917 along the coast outside the crater. The postcard view of the shoreline of southeastern Oʻahu from Koko Head to Wai’anae is stunning, and during winter, may include passing humpback whales.
Route
From the parking lot on the crater floor, the trail to the summit is 0.8 mile (1.3 km) one way and climbs 560 feet (171 m) in elevation. There is a paved concrete walkway for a distance of 0.2 miles at the start of the hike, but the trail becomes uneven and steep, requiring caution and appropriate footwear. Portions of the trail involve steep stairways – take your time. Another portion of the trail goes through a long, narrow tunnel which is lighted.
Directions
The trailhead is adjacent to the parking lot within Diamond Head State Monument. The entrance is off Diamond Head Road between Makapu’u Avenue and 18th Avenue, Honolulu. See park page for fees. (Click Here)
Additional Info
- Mountain biking is not allowed on this trail.
- Stay on the trail.
- NO DOGS ALLOWED IN DIAMOND HEAD STATE MONUMENT.
- Pack out at least what you pack in.
- No open fires.
- Hiking permit not required for groups less than 25.