PARK UPDATES: 6/8/22
ʻIAO VALLEY STATE MONUMENT – As of August 1, 2022 ʻIao Valley State Monument will be closed until January 15, 2023 for the final phase of the slope stabilization project and parking lot improvements.
DIAMOND HEAD STATE MONUMENT - As of May 12th, 2022 all out-of-state visitors must have an advanced reservation to enter the park. PUC commercial tour and trolley patrons must have a reservation. Reservations can be made 14 days in advance. Hawaiʻi residents continue to enjoy free access without reservations, but parking entry may depend on availability.
Royal Mausoleum State Monument
8:00 am to 4:30pm
Monday – Friday
The Royal Mausoleum State Monument is the burial place of Hawaiian royalty. It includes members of the Kamehameha and Kalakaua Dynasties with their retainers.
- Information service and guided tours are available through advance reservations.
- Picnicking is not allowed.