What a campsite's status means

Reservation sites label their calendars differently, but every campsite night is in one of a small number of states. Knowing the state tells you what has to change before the night can be booked.

The nine states

The first two are what calendars are built to show. The other seven are the reason a search result can be misleading.

Not yet released

Dates beyond the booking window are present on the calendar and unbookable. They are not sold out. On a rolling window they open on a date you can work out: six months ahead at 8 a.m. Pacific on ReserveCalifornia, five months ahead at 7 a.m. Eastern on Ontario Parks, three months ahead at 7 a.m. Pacific on BC Parks. On Recreation.gov the campground's Seasons and Fees tab gives the date and time. On Parks Canada the whole season waits for the park's launch day. The booking windows page has each rule.

Held in checkout

When a camper adds a site to a cart, the system removes it from the calendar for a short period so that two people cannot pay for the same nights. Recreation.gov states the length: a site is locked in the cart for 15 minutes, and if checkout is not completed in that time it is released for others. A site that disappears and comes back within 15 minutes is consistent with a hold that was never completed. The other agencies covered here do not publish a hold length.

Awaiting re-release

On most systems a cancelled site returns with no published delay. California State Parks is the exception. It says most cancelled sites become available at 8 a.m. on the day following the cancellation. Between the cancellation and that 8 a.m. release the site is unreserved and unbookable.

Locked

A locked site is reserved, and the reservation cannot yet be altered.

• Ontario Parks: a reservation cannot be changed or cancelled more than four months before arrival.
• Recreation.gov: a reservation with dates beyond the maximum booking window cannot be changed until 18 days after it was made.
• Indiana: a reservation whose departure falls beyond the maximum booking window cannot be changed or cancelled for 18 days.

A lock is invisible on the calendar. Its effect is a period after each release in which reserved sites cannot turn over.

Rule-blocked

An empty night is not always a bookable night. Stay rules sit between the calendar and the checkout.

Some rules relax as the date approaches. Indiana releases an unrented campsite for a one-night weekend stay once it is within three days of arrival, and allows a single Friday or Saturday night to be booked when two other reservations leave it as a gap. Neither exception applies on holiday weekends.

Walk-up only

First-come, first-served sites are not part of the online inventory.

• California State Parks says some sites remain first-come, first-served.
• BC Parks offers its non-reservable sites this way, and says many reservable sites left unbooked can be used the same way.
• Oregon State Parks has first-come, first-served sites at some campgrounds, seasonally or year-round.
• Pennsylvania treats unreserved sites as first-come, first-served, with payment to a park employee or an honour envelope before setting up.
• Indiana is moving the other way. Its rules say properties do not hold back campsites for walk-ins, because every campsite is reservable until 11 p.m. Eastern on the day of arrival.

A campground made up of walk-up sites returns nothing in an online search. That is a different condition from being full.

Reserved, but nobody is there

An empty pad at dusk can still be a reserved site. Agencies hold a reservation for a late arrival before treating it as a no-show: until noon the next day in California, 11 a.m. the next morning in BC Parks and Parks Canada, and 1 p.m. the next day in Oregon. Indiana does not process a no-show until the last day of the reservation. The site returns to the calendar, if at all, only after that point.

Closed

A campground outside its reservable season shows no availability for those dates. So does a loop or site closed by the park. Indiana, for example, describes peak and non-peak reservation seasons and notes that during the non-peak months some campgrounds close or offer only part of their sites. Season dates are set per campground and are listed on the agency's own page for it.