The State of Hawaii has implemented an advanced reservations system for out-of-state visitors at iconic Lē‘ahi – Diamond Head State Monument, effective May 12, 2022.

Diamond Head State Monument is one of Oʻahu’s most sought-after and visited attractions with stunning views along its hiking trail. The new reservation system will mitigate environmental impacts sustained by foot traffic, reduce vehicle congestion in the park and surrounding neighborhoods, improve the experience of kamaʻāina and visitors enjoying the monument, and help preserve this landmark for future generations.

Beginning May 12, individuals without a Hawai‘i State Driver’s License or ID must have advance reservations to enter the park. Hawai‘i residents will continue to enjoy free access to the park without reservations, but entry may depend on parking availability.

Commercial tour and trolley patrons will also be required to have reservations. Registered PUC commercial carriers will have access to a separate reservation portal developed concurrently with the public reservation system.

Visitors parking vehicles in the crater will be required to book in two-hour time slots beginning at 6 a.m. (two consecutive slots can be booked). Walk-in and drop-off visitors will be subject to one-hour entry time slots. Arrival and exit times will be enforced to assure adequate turnover to allow for later arrivals. Park hours and visitor entrance fees are available at