The hardest California campgrounds to book

Name: How fast California campsite cancellations get re-booked
Creator: CampSage

The best California campsites are “sold out” months out — but people cancel constantly. The real question isn’t whether a spot opens, it’s how long it lasts before someone else grabs it. We scan every California campground on recreation.gov and ReserveCalifornia several times a day and log the check at which each site frees up — and the check at which it is gone again. Here’s what that reveals.

At Hearst San Simeon SP, half the cancellations we logged were already gone by the time we looked again — within 5.1 hrs. You have hours, not days.

⏱️ Fastest-vanishing cancellations

For half the openings we logged, the site was already re-booked by our next check — this is how long that took. Lower means you have to move faster.

#	Campground	Gone within	Openings measured
1	Hearst San Simeon SP	5.1 hrs	142
2	San Onofre SB	8.2 hrs	121
3	Dogwood	10.9 hrs	107
4	Jumbo Rocks Campground	10.9 hrs	115
5	Kirk Creek Campground	11.0 hrs	92
6	San Elijo SB	11.1 hrs	210
7	Indian Cove Campground	12.1 hrs	58
8	Pinnacles Campground	13.0 hrs	158
9	San Miguel Island	14.0 hrs	30
10	Serrano	14.8 hrs	171
11	Malibu Creek SP	15.1 hrs	115
12	Jedediah Smith Redwoods SP	15.4 hrs	46

🔄 Where cancellations happen most (best odds if you watch)

These California parks turn over the most — set an alert and your chances are highest here.

#	Campground	Openings/week
1	Carpinteria SB	18.3
2	Morro Bay SP	17.6
3	Doheny SB	17.5
4	Silver Strand SB	17.5
5	Pismo SB	17.5
6	San Clemente SB	17.4
7	Santa Cruz Island Scorpion	16.3
8	South Carlsbad SB	16.0
9	Crystal Cove SP Moro Campground	15.0
10	Serrano	14.9

Methodology. CampSage scans every California campground on recreation.gov and ReserveCalifornia continuously and appends an event each time a site opens or fills. This ranking covers 62.8 days of continuous tracking since August 16, 2026 (17,412 matched open→re-booked events); it updates daily and gets more robust as the record grows. Parks shown have at least 20 measured openings, because a park with a handful ranks on noise rather than on demand. These figures are upper bounds, not stopwatch readings: we observe checks, not moments, and our checks are hours apart, so a site retaken ten minutes after it opened and one that lasted four hours can land in the same bucket. Read “gone within 4 hrs” as “already taken by the time we looked again.” The median is the middle value, so one unusually long-lived opening cannot skew it. Journalists / researchers: happy to share the underlying data or a longer window — about CampSage.

Want to catch one of these? Set a free alert on the live map → and we’ll email you the second a site opens.

Other regions. Ontario · Washington · British Columbia · Colorado · Oregon

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