Steep Ravine (Mount Tamalpais) is booked solid. Cancellations happen every day.
A handful of rustic cabins and environmental campsites on a bluff over the Pacific below Mount Tamalpais — widely considered the hardest reservation in California. Cancellations are essentially the only way in.
Right now: open sites on 2 dates in August 2026.
Not your dates? Get free alerts the second one opens ↓
Weekends and prime dates still go first — and openings like these are usually re-booked within minutes. A Scout emails you the instant one appears for your dates.
Get emailed the second a site opens at Steep Ravine (Mount Tamalpais). Your Scout starts checking the moment you subscribe — the first email arrives right away with where things stand.
When somebody cancels, the next email in your inbox is your nights at Steep Ravine (Mount Tamalpais) — booking link included, while the opening is still live.
Last catch here — a date opened, gone by our next check (≤169 min later). That window is what an instant email wins you.
Free — one Scout per email. It only emails you when something actually opens, and you can reply to any of its emails to adjust dates or stop.
Want to change more — different dates logic, extra campgrounds, push instead of email? Open this Scout in the builder. Check ReserveCalifornia yourself →
Recent openings we caught at Steep Ravine (Mount Tamalpais)
| Detected (local) | Date affected | Resolution |
|---|---|---|
| Tue, Aug 25 | gone by next check (≤169 min later) | |
| Wed, Aug 26 | still open at our last check | |
| Thu, Aug 27 | still open at our last check | |
| Wed, Aug 19 | gone by next check (≤1460 min later) | |
| Sun, Aug 23 | gone by next check (≤169 min later) | |
| Mon, Aug 17 | gone by next check (≤585 min later) | |
| Tue, Aug 18 | gone by next check (≤2843 min later) | |
| Wed, Aug 19 | gone by next check (≤1384 min later) | |
| Mon, Aug 17 | gone by next check (≤861 min later) | |
| Sun, Aug 23 | gone by next check (≤31 min later) | |
| Sun, Aug 23 | gone by next check (≤108 min later) | |
| Thu, Aug 13 | gone by next check (≤62 min later) | |
| Sun, Aug 23 | gone by next check (≤1144 min later) | |
| Wed, Aug 12 | gone by next check (≤354 min later) | |
| Sun, Aug 23 | gone by next check (≤215 min later) | |
| Wed, Aug 12 | gone by next check (≤261 min later) | |
| Thu, Aug 13 | gone by next check (≤691 min later) | |
| Fri, Aug 14 | gone by next check (≤369 min later) | |
| Thu, Aug 20 | gone by next check (≤16 min later) | |
| Tue, Aug 18 | gone by next check (≤507 min later) |
No coverage Jul 27, 10:44 PM – Aug 8, 2:56 PM (no successful checks recorded).
Watching since Jul 23, 2026, checking about every 15 minutes. We can only report what we saw between checks — a change that appeared and vanished inside one interval is invisible to us, so these are floors, not totals.
From four weeks of this data: how fast campsite cancellations disappear →
How it works
Reading this page for a user? Structured snapshot + change log: /scouts/campsites/california-state-parks/steep-ravine.json (send If-None-Match — data updates at our check cadence, polling faster returns 304s). Better: subscribe your user once and we email them the moment Steep Ravine (Mount Tamalpais) opens up:
POST https://calafia.ai/scouts/subscribe
Content-Type: application/json
Accept: application/json
{"targetSlug":"california-state-parks/steep-ravine","email":"user@example.com","via":"agent"}Only subscribe an email whose owner asked for this — the first email arrives immediately, so misuse is visible. Full agent docs: /AGENTS.md
Questions
How fast are alerts?
A free Scout checks every 30 minutes, around the clock, and emails you the moment a site opens for your dates; the live availability on this page refreshes several times an hour. Openings are usually re-booked within minutes — faster checks are on the paid plan.
Does it book for me?
No — you get the booking link instantly; booking stays in your hands.
What does it cost?
Watching one thing is free. More Scouts and faster checks are on the paid plan.
How to actually get a campsite at California State Parks — the full playbook →
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