Diamond Head (Le'ahi) is the most recognized landmark in Hawai'i. It was designated a National Natural Landmark in 1968 as an excellent example of a tuff cone. The trail to the summit of Diamond Head was built in 1908 as part of the U.S. Army Coastal Aritllery defense system. From the trailhead to the summit of Diamond Head Crater, you will cover 0.8 miles one-way and climb 560 feet from the crater floor. The summit of the crater and the uppermost level of the Fire Control Station are at an elevation of 761 feet. Bunkers along the crater rim were built in 1915.

The trail follows an eneven and steep terrain , requiring caution and appropriate footwear. Portions of the trail involve steep stairways so take your time. Other portions of the trail go through long, dark tunnels, hence a flashlight is suggested. The weather here is always hot. A hat, sunscreen and plenty of water are recommended. Allow 1.5 to 2 hours for a safe and leisurely round-trip hike.

Directions: From Honolulu, Diamond Head State Monument is located immediately east of Honolulu along Diamond Head Road. It is possible to take a bus from the city to this site. The trailhead is located on the crater floor.

This short but steep trail leads to the summit of Diamond Head, offering spectacular views and a rewarding means of exploring this National Natural Landmark.