Mather is booked solid. Cancellations happen every day.
The South Rim's main campground in Grand Canyon Village, steps from the rim shuttle. It books out for the entire high season almost as soon as dates release.
Right now: open sites on 22 dates in July 2026. (checked just now via recreation.gov)
- Fri, Jul 10 — 120 sites open
- Sat, Jul 11 — 139 sites open
- Sun, Jul 12 — 163 sites open
- Mon, Jul 13 — 176 sites open
- Tue, Jul 14 — 179 sites open
- Wed, Jul 15 — 183 sites open
- Thu, Jul 16 — 168 sites open
- Fri, Jul 17 — 153 sites open
+ 14 more dates this month.
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 Mather. Your Scout starts checking the moment you subscribe — the first email arrives right away with where things stand.
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 recreation.gov yourself →
How it works
- Tell your Scout the dates you want at Mather.
- It checks recreation.gov every few minutes, around the clock, and stays silent while nothing changes.
- The instant a site opens, you get an email with the booking link — booking stays in your hands.
Questions
How fast are alerts?
Calafia checks every few minutes, around the clock, and emails you the moment a site opens for your dates — openings are usually re-booked within minutes, so speed is the whole product.
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.