HONOLULU – More full-day closures are forthcoming to Diamond Head State Monument (DHSM) next month. The DLNR Division of State Parks (DSP) announces park closures for ongoing rockfall mitigation work from June 17-20 and 24-27 at the popular O‘ahu landmark.

During these full closures, access to the park will be restricted and no visitors will be allowed entry. Employees will access the crater via the Kapahulu Tunnel between 6 a.m. and 6 p.m. A guard will be stationed at the entry gate leading to the tunnel for the duration of the closures.

On Monday June 16 and 23, the park will maintain its current partial closure hours from 6 a.m. – 2 p.m. All other days in June will continue with the current schedule: weekdays with closure at 2 p.m. and weekends with closure at 6 p.m.

DSP appreciates the patience of residents and visitors through this process to create a safer, more enjoyable experience at Diamond Head. The estimated project completion date is July 25, 2025.