Big Basin Day Availability & Cancellation Tracker
Big Basin Day is issued via walk-up. When someone tracks it, our scanner monitors the booking system continuously and alerts them the moment dates open.
PermitCast forecast
Forecast unlocks soon
Start a watch and this permit begins collecting scan history straight away. Forecasts unlock at 6 weeks of it.
How we calculate thisBe the first to watch Big Basin Day
Set up a watch and the scanner starts checking Big Basin Day straight away, with alerts by push, SMS and email the moment dates open. Every check it makes from then on is counted on this page.
Recent availability changes
Start a watch and every opening the scanner catches for this permit lands here, newest first.
See the live feed of availability changes across all permits.
How cancellation tracking works
Sold out almost never means gone. People cancel Big Basin Day trips for weather, injuries, and schedule changes, and those dates go straight back to the booking system without any announcement.
PermitSnag checks Big Basin Day availability around the clock, compares every scan against the last known state, and alerts watchers only when the open dates actually change. No refresh-tab-and-pray, no false alarms from unchanged listings.
Big Basin Day availability questions
How do I get a Big Basin Day permit after it sells out?
Cancellations. Booked Big Basin Day permits that get cancelled return to the reservation system, usually with no announcement. PermitSnag scans continuously and alerts you the moment a date you want opens up.
How often do Big Basin Day permits become available?
Cancellation timing is unpredictable, which is why continuous monitoring matters. Spots tend to open around payment deadlines and in the days right before trips, when plans fall through.
How fast are Big Basin Day availability alerts?
Paid plans are scanned about every minute and alerts go out within seconds of a detected opening, by push notification, SMS, and email. Free accounts are scanned hourly.