Diamond Head State Monument (Lē‘ahi), a prominent landmark near Waikiki’s coastline in Oʻahu, Hawai’i, is renowned for its hiking trail, coastal views, and rich history. Encompassing over 475 acres, including the crater’s interior and outer slopes, it offers a unique glimpse into the island’s geological and military past. But before you plan your visit, you might be wondering, “What Time Is It In Hi?” Knowing the local time will help you make the most of your trip and ensure you adhere to the park’s operating hours.
Planning Your Visit to Diamond Head
Diamond Head State Monument operates daily from 6:00 am to 6:00 pm, with the last entry at 4:00 pm. The gates close promptly at 6:00 pm, so all visitors must exit the park by then. Note that the park is closed on Christmas and New Year’s Day. For those planning a visit during construction periods, it’s essential to check the website for updated operating hours, which may be limited to 6:00 AM to 2:00 PM on weekdays. Staying updated on the current time in Hawaii (HST) is crucial for planning your arrival and departure.
Hiking the Historic Trail
The 0.8-mile trail to the summit, built in 1908 as part of O‘ahu’s coastal defense system, is steep and strenuous, gaining 560 feet from the crater floor. As you ascend, the concrete walkway transitions to a natural tuff surface, winding through switchbacks that traverse the crater’s interior. The hike continues through a lighted 225-foot tunnel to the Fire Control Station, completed in 1911. This station once directed artillery fire from batteries in Waikiki and Fort Ruger. Reaching the summit rewards you with stunning panoramic views, bunkers, and a navigational lighthouse built in 1917. During winter, keep an eye out for humpback whales passing along the shoreline from Koko Head to Wai‘anae.
Important Information for Visitors
Entry and parking reservations are required for non-residents. Entry fees are collected via credit card only: Hawaii residents enjoy free entry with a Hawaii ID or DL, while non-residents pay $5. Children aged 3 and under enter free. Non-commercial vehicle parking costs $10 for non-residents. Commercial vehicle fees vary depending on the vehicle size.
Important Reminders:
- No pets are allowed in the park, except for service animals.
- The park facilities on the crater floor are accessible to those with disabilities; however, the hiking trail to the summit is not ADA accessible due to its steep and uneven terrain.
- Allow 1.5 to 2 hours for your hike.
- Wear appropriate walking shoes, bring plenty of water, and protect yourself with a hat and sunscreen.
Exploring Diamond Head’s Features
Diamond Head’s unique saucer-shaped crater was formed about 300,000 years ago during an explosive eruption. Ash and fine particles settled and cemented together, forming the tuff rock visible along the trail. Most of the vegetation and birds in the area were introduced between the late 1800s and early 1900s.
Virtual Reality Experience
For those seeking a virtual experience, a 360º VR narrated hike of the Lēʻahi Diamond Head Trail is available online, allowing you to explore the trail from anywhere in the world.
Diamond Head Interpretive Kiosk & Gift Shop
The Diamond Head interpretive kiosk, constructed in 2000, offers visitor services and exhibits about the crater’s history and resources. Renovated in 2014 in collaboration with Pacific Historic Parks, the kiosk now also features a gift shop where you can purchase Diamond Head-themed merchandise.
In 2024, a new Native Wildlife interpretive exhibit was developed in partnership with Waikīkī Elementary School, showcasing native birds and plants researched and illustrated by the students.
Opportunities to Volunteer
For those interested in giving back, Diamond Head State Monument offers a docent program. Volunteers must be at least 18 years old (or have parental permission), meet with Park Ranger/Volunteer Program staff, and commit to at least 3 to 6 months.
Conclusion
Diamond Head State Monument offers a blend of history, natural beauty, and recreational opportunities. Knowing “what time is it in HI” and planning accordingly will ensure a memorable and safe visit. Whether you’re hiking to the summit, exploring the interpretive exhibits, or simply taking in the stunning views, Diamond Head provides an unforgettable experience in the heart of Hawaii. Before you go, check the official Diamond Head State Park website for the most up-to-date information and to make your reservations.
