Diamond Head State Park
Honolulu, Hawaii· Campsite openings, cancellations & sold-out date alerts
Sold out for your dates? We'll tell you the second a site opens.
Cancellations at Diamond Head State Park get rebooked in minutes. We check Hawaii State Parks around the clock and alert you before the crowd refreshes the page.
The alert
Here's what lands the second a site opens.
The moment a campsite frees up at Diamond Head State Park, we send it — with the dates and a one-tap link to book it on Hawaii State Parks before anyone else. Most alerts go out within minutes.
How GetParkAlerts works
- 01
Set your alert for Diamond Head State Park
Tell us your dates and how many nights. Takes about 30 seconds.
- 02
We watch, around the clock
We check Hawaii State Parks every few minutes for the cancellations that vanish before most people notice.
- 03
You get the alert first
Email or push the instant a matching site frees up. You book it directly with the park — we just get you there first.
Park type
State Parks
Small park
Online booking
Available on Hawaii State Parks
Official state reservation system
Alert coverage
Checked around the clock
Openings, cancellations & new dates
Where Diamond Head State Park is
Getting a campsite at Diamond Head State Park
How do I get a campsite at Diamond Head State Park when it's sold out?
Cancellations happen constantly — the trick is being first to know. Set an alert for your dates and we'll watch Diamond Head State Park on Hawaii State Parks around the clock, then notify you the moment a site opens. Alerts run on a Pro subscription ($9.99/mo, cancel anytime).
When do campsites usually open up at Diamond Head State Park?
Whenever someone cancels. Most reservation systems refund less the closer you get to arrival, so cancellations cluster in the days before a stay — but the openings themselves are unpredictable, which is exactly why watching for them beats refreshing the page.
How fast do cancelled sites get rebooked at Diamond Head State Park?
At high-demand Hawaii parks a cancelled summer-weekend site is often rebooked within minutes — sometimes under a minute. Being notified the instant it opens, with your Hawaii State Parks login and payment already saved, is the difference between getting in and missing it.
Where do I book a campsite at Diamond Head State Park?
Reservations for Diamond Head State Park are made on Hawaii State Parks, the official booking system for Hawaii State Parks. GetParkAlerts is independent — we tell you when a site opens; you book it directly on the official site.
Does GetParkAlerts reserve the site for me?
No — we never hold or book sites. We tell you the second one opens so YOU can book it on Hawaii State Parks before anyone else. Booking always happens on the official state system.
Parks near Diamond Head State Park
Flexible on where you camp? Watch a few of these too — more parks, better odds.
- Sand Island State Recreation Area5 mi away · Honolulu
- Keaiwa Heiau State Recreation Area11 mi away · Aiea
- Ahupua'a o Kahana State Park21 mi away · Kaaawa
- Malaekahana State Recreation Area29 mi away · Laie
- Pala'au State Park52 mi away · Kualapuu
- Iao Valley State Park85 mi away · Wailuku
- Polipoli Spring State Recreation Area103 mi away · Kula
- Wai'anapanapa State Park121 mi away · Hana
- Napali Coast State Wilderness Park132 mi away
- Kokee State Park132 mi away · Hanapepe
- Polihale State Park138 mi away · Waimea
- Kiholo State Park Reserve155 mi away