How to catch a cancellation.
“Sold out” is rarely the end of the story. Here’s why spots come back, when it happens most, and how to be the person who books them.
Why things come back
Popular campsites, permits and tickets are booked the moment they’re released, often by people who aren’t sure of their plans yet. Over the following weeks, life happens: a kid gets sick, a work trip moves, a group shrinks from six to four, someone books two campgrounds and drops one. Each change puts a spot back on the calendar.
Official systems put that spot straight back on sale for anyone to book. There’s no waitlist and no announcement. It just appears.
When cancellations happen
- Right before a fee goes up. Many sites charge more to cancel close to the date, so cancellations cluster just before that cutoff.
- In the last few days. Weather forecasts, road conditions and plain old cold feet bring a wave of returns right before the date.
- After a big release. People who booked “just in case” on release day sort out their plans in the following week or two.
- When a lottery is awarded. Winners who can’t go give their spots back, and unclaimed quota is often released later.
- On scheduled quota drops. Some parks and museums hold back part of their inventory and release it on a set day.
Why they vanish in minutes
A returned Saturday at a famous campground might be seen by hundreds of people refreshing the page. Whoever clicks first wins. That’s why checking once a day almost never works, and why Nabbi checks every 10 minutes, or every 2 minutes with Priority.
Five habits that work
- Turn on notifications for your alert email. Make sure email from Nabbi lands in your inbox and pings your phone. Add us to your contacts.
- Stay signed in. Log in to Recreation.gov, the museum shop or the CBP site in advance, with payment details saved where possible.
- Book first, plan second. If it’s close to right, take it. Most official sites let you change or cancel later, often for a small fee.
- Know your details. Group size, vehicle length, the names on tickets, which trailhead. Decide before the alert, not during checkout.
- Don’t give up after one miss. If something opened once, it will probably open again. Keep the alert running.
Raise your odds
- Watch a cluster. Add every campground in the valley, or every lodge in the park, to one trip.
- Widen the dates. “Any two nights that week” opens up far more often than one specific Friday.
- Split the stay. Two nights here and one there beats zero nights anywhere.
- Go midweek or shoulder season. The difference between a Saturday in July and a Tuesday in September is huge.
- Use Concierge for the impossible ones. For sights we can’t check automatically, a person can watch for you.
What not to do
- Don’t buy from scalpers. Resold permits and name-bound tickets are often against the rules and can be cancelled at the gate.
- Don’t use bots that hold inventory. They break the official sites’ rules and take spots from everyone else. Nabbi only reads public availability and never holds anything.
- Don’t double-book and forget. If you grab a backup, cancel the one you don’t need so the next person gets their trip.
Pay it forwardEvery spot you release is someone else’s Nabbi alert. Cancel early when your plans change.
Put this guide to work.
Set an alert for the trip you want. We’ll handle the refreshing.