Tucked into Sycamore Canyon where the Santa Monica Mountains meet the sea — tide pools, sea caves, a beach across the highway, and shaded sites under the sycamores. It sells out months ahead. But it reopens from cancellations, and when it does, you've got minutes. The trick is being the one who's watching.
I run a scanner that checks ReserveCalifornia about every five minutes. Over one 13-day stretch I tracked (April 24 to May 6, 2026), Leo Carrillo reopened from real-time cancellations 7 times. That's the pattern with the premium coastal spots — they don't turn over constantly like the big inland campgrounds, but they do open up. And because the openings are rare and vanish in minutes, this is exactly the kind of park a human refreshing by hand will basically never catch. A scanner watching 24/7 is the only realistic way.
Leo Carrillo releases on a six-month rolling window through ReserveCalifornia, and the good summer weekends are gone within seconds of the 8 a.m. release. The real path in is a cancellation: someone books a popular weekend months out, plans fall through, and the site quietly reopens. Whoever's watching that minute gets it.
Leo Carrillo is a surf and tidepool spot, so when Campkey texts you that a site opened, the alert comes with the surf forecast for your dates and the tide times — so you know whether to bring the board, and when the tidepools will be exposed for the kids. No other cancellation tool does that, because no other tool is built by a California surfer.
We check it about every five minutes, 24/7, and text you within minutes of a site opening — with the surf and tides for your dates. You just book it.