Quick answer: popular campgrounds sell out within minutes of their booking window opening. To get a site, learn the exact release rule for your campground (many federal campgrounds on Recreation.gov use a rolling six-month window that opens at 10 a.m. Eastern), set up your account and payment ahead of time, list several site numbers and dates, and be logged in before the release. If you miss out, watch for cancellations, try midweek dates, look for first-come, first-served sites, or consider free dispersed camping.
Getting a campsite at a famous national park or a popular lakeside state park can feel like buying concert tickets. Demand for camping has grown, and the best campgrounds often book out the morning their dates are released.
The good news is that booking systems follow predictable rules. Campers who know those rules, prepare ahead and keep a backup plan have a much better chance. This guide walks through how booking windows work, how to prepare for release day, how to catch cancellations and what to do when every site is gone. If paying for a reserved site is not essential, our complete guide to free camping in the US explains how to camp on public land at no cost.
Sources: Recreation.gov help center and campground pages; National Park Service campground pages, including Yosemite National Park reservations; state park reservation systems. Release rules vary by campground and change over time, so always confirm on the official page before release day. Checked October 2026.
How Campsite Reservation Windows Work
Most reservable campgrounds release dates on a schedule called a booking window. Understanding the window for your campground is the single most important step.
Rolling windows
Many federal campgrounds on Recreation.gov use a rolling window. According to Recreation.gov, a typical campground opens reservations six months in advance, with new dates becoming available each day at 10 a.m. Eastern time. With a rolling six-month window, a site for July 15 would open on January 15.
Block releases
Some parks release a whole month at once. Yosemite National Park, for example, releases reservations for many of its campgrounds in one-month blocks up to five months in advance, on the 15th of each month at 7 a.m. Pacific time, according to the National Park Service. Block releases create intense competition because thousands of people try to book the same morning.
Shorter or longer windows
Some campgrounds open only a few weeks ahead, and others hold some sites for shorter-notice booking. Group sites, cabins and lookouts may follow different rules than standard sites. Read the campground’s page on Recreation.gov or the park website for its exact policy.
State parks
State parks run their own systems, and windows vary widely. Some states use a rolling window of several months up to around a year; others release on fixed dates. Look up the reservation policy for your state’s park system, and check whether residents get early access or lower fees.
Which agencies and platforms handle reservations
Where you reserve a campsite depends on who manages the land. Recreation.gov is the reservation platform for federal agencies, including the National Park Service, USDA Forest Service, U.S. Army Corps of Engineers, Bureau of Land Management and Bureau of Reclamation. State park systems run their own reservation websites, often through a contracted platform, and county parks and private campgrounds usually take bookings directly. Before release day, confirm which platform your campground uses and its exact booking window.
How to Reserve a Campsite on Recreation.gov, Step by Step
The basic process is the same at most federal campgrounds:
- Create an account. Set up your username and password, verify your email, and save your vehicle and payment details ahead of time.
- Search by location. Search the campground name or area and open the campground page. Read the rules, site types and season dates.
- Check availability. Use the availability calendar or grid to see open dates by site, or switch to the map to compare locations, such as distance to the water or bathrooms.
- Select your arrival and departure dates. Pick the site, then your arrival date and departure date. Check the minimum and maximum stay requirements.
- Add to cart. Once a site is in your cart, it is held for a short time, roughly 15 minutes on Recreation.gov, while you check out. Other visitors cannot book it during that hold.
- Check out. Enter the number of campers and vehicles, accept the rules, and pay. Save the confirmation email.
Practice the full process on a less popular campground before launch day so you know where every button is.
Before Release Day: Prepare
Create and verify your account
Make an account on the booking site well in advance. Confirm your email, save your contact details and, where allowed, save a payment method. Typing a card number during a release can cost you the site.
Research specific sites
Study the campground map and site photos. Write down five to ten acceptable site numbers in order of preference. Note details like:
- Site type and maximum vehicle or RV length
- Number of people and tents allowed
- Whether the site is accessible, has hookups or sits near restrooms
- Distance from water, roads and noisy areas
Choose flexible dates
Your odds improve if you can shift by a day or two or start midweek. Friday and Saturday nights in summer are the hardest to get.
Check the booking rules
Some campgrounds limit how many nights you can book or how many reservations one account can hold. Others require a minimum stay on weekends or holidays. Know the rules so your cart is valid the first time.
Sync your clock
Releases happen to the second. Check the official time and convert it to your local time zone. A 10 a.m. Eastern release is 7 a.m. Pacific.
How to Reserve a Campsite on Release Day
- Log in 10 to 15 minutes before the release.
- Open the campground page and set your dates.
- Have your site list and dates written down beside you.
- Refresh the page right at the release time.
- Add your first-choice site to the cart immediately. On Recreation.gov, a site in your cart is held for a short time while you complete checkout.
- If your first choice is gone, move straight to the next one.
- Complete payment quickly and check that you receive a confirmation email.
Mistakes that cost sites
- Waiting to log in until the release time
- Browsing photos instead of booking
- Trying to book only one specific site
- Forgetting about time zone differences
- Booking dates that do not meet a minimum-stay rule
Tools that improve your odds
Use a fast, reliable internet connection and a desktop browser you have already logged into. Keep a short list of backup sites ready so you can switch quickly if your first choice shows as unavailable. If a site shows as reserved after you click, go straight to the next site on your list rather than refreshing the same one. Technology helps, but planning helps more: flexible dates and several acceptable sites matter more than speed.
Catching Cancellations
Even fully booked campgrounds open up as plans change. Cancellations appear regularly, especially in the final weeks before a date.
When to look
Cancellations often show up in the days and weeks before a trip, when people’s plans firm up. Checking several times a day improves your chances. Early morning and late evening checks can pay off.
How to look
- Check the campground’s availability grid for the dates you want, plus nearby dates.
- Look at single nights. Booking two separate one-night stays at different sites in the same campground can work if you are willing to move.
- Watch nearby campgrounds. A campground a few miles away may have openings.
- Be ready to book instantly. Cancelled sites are usually snapped up fast.
Some third-party services monitor availability and send alerts for a fee. If you use one, read its terms, and remember that the booking itself must still go through the official site.
Cancellations often show up as plans change before a weekend, so many campers check for availability on Thursdays and Fridays and again a few days out. Third-party availability alert tools can notify you when a site opens; they still require you to reserve it yourself on the official platform.
Know the cancellation rules yourself
If you book several options as backups, cancel the ones you will not use as soon as possible. Recreation.gov charges service fees on cancellations and may keep some or all of the first night’s fee for late cancellations, depending on the timing. Cancelling early also frees the site for someone else.
How to Reserve a Campsite When Everything Is Booked
First-come, first-served sites
Some campgrounds keep sites that cannot be reserved. These are first-come, first-served. To get one, arrive early, often on a weekday morning when weekend campers are leaving. Check the park website for which campgrounds offer these sites and how they work.
Midweek and shoulder season
Sunday through Thursday nights and spring or fall dates are far easier to book. Shoulder seasons can also mean fewer crowds and cooler weather. Our guide to Florida camping seasons is one example of how timing changes the experience.
Nearby public land
National forests and Bureau of Land Management land often surround popular parks. Many allow dispersed camping, which means camping outside developed campgrounds, usually for free and without a reservation. You give up amenities like toilets and water, but you gain flexibility.
Weather and fire closures
Sometimes sites open because of road closures, fire restrictions or storms. Before booking a last-minute opening, check park alerts so you are not booking a site that is about to close.
Private campgrounds and RV parks
Private campgrounds near major parks may have openings when public sites are full. Prices are often higher, but they can save a trip.
State and county parks
Smaller state, county and city parks are often overlooked and may have open sites even in peak season.
How to Reserve an RV or Trailer Campsite
RV campers face an extra filter: site length. Many older campgrounds, especially in national parks, were built for smaller vehicles, and only a handful of sites can fit a large trailer or motorhome.
- Measure your total length, including the tow vehicle if the site listing counts it, and note your slide-outs.
- Filter by length on the booking site, then check the site photos for tight turns or low branches.
- Confirm hookups. Many park campgrounds have no electric, water or sewer connections, so plan for dry camping if needed.
- Check generator hours, which are often limited to set times of day.
Because suitable sites are scarce, RV campers often need to be the fastest on release day. First-time RV travelers can find more planning tips in our guide to common first RV trip mistakes.
Booking for Groups
Group campsites hold larger parties under one reservation and often open on different schedules from single sites. Some are reservable a full year ahead. If you are camping with several families, compare the cost of a group site with booking several neighboring single sites. Neighboring single sites are hard to get together, so a group site is usually simpler when one is available.
Agree on dates and a budget before release day, and decide in advance who will do the booking so several people do not compete for the same site.
Lotteries and Permits
Some of the most popular camping and hiking experiences use a lottery instead of first-come booking. Recreation.gov runs lotteries for certain permits and campgrounds, where applicants enter during a set window and winners are drawn at random. Lotteries are fairer than speed-based releases but have their own deadlines, fees and rules. Read the lottery page carefully, note the application dates and check whether you need to accept a winning slot by a deadline.
Backcountry camping in many parks also requires a wilderness permit, which is separate from a campground reservation. Check permit requirements for any overnight hike.
Budget Tips for Booking
Reserved campsites carry nightly fees and often a reservation fee. To keep costs down:
- Use an America the Beautiful pass for entry fees at national parks, if you visit several in a year. The pass covers entrance and standard amenity fees, not camping fees in most cases.
- Check for senior and access passes, which can reduce some camping fees at federal sites.
- Compare state park resident and nonresident rates.
- Split a larger site with friends where group rules allow.
For more ways to save, see our guide to budget camping without overspending.
After You Book
Once you have a confirmation, the work is not quite done.
- Save the confirmation email and print or screenshot it in case there is no cell service at the campground.
- Check the arrival rules, including check-in times, quiet hours and gate closing times.
- Read fire and food storage rules, since some parks require bear-resistant storage.
- Plan your gear. Use our camping checklist guide so nothing is forgotten.
- Set a reminder for any cancellation deadline in case plans change.
A Sample Booking Timeline
| When | What to do |
|---|---|
| 6 to 7 months before | Pick your destination and research campgrounds and release rules |
| 1 to 2 weeks before release | Create your account, save payment details and list your sites |
| Release day | Log in early and book the moment dates open |
| Weeks before the trip | Watch for cancellations if you missed out |
| Days before the trip | Confirm the reservation, check alerts and pack |
Frequently Asked Questions
What time do Recreation.gov campsites open for booking?
Many Recreation.gov campgrounds release new dates at 10 a.m. Eastern time on a rolling six-month window, but rules vary. Check the campground’s page for its exact policy.
How do I get a campsite at a sold-out campground?
Check often for cancellations, try midweek or single nights, look at nearby campgrounds, and consider first-come, first-served sites or dispersed camping on nearby public land.
Is it better to book on the website or the app?
Both connect to the same reservation system. Use whichever you can operate fastest, and log in before the release time.
Can I hold a site while I decide?
On Recreation.gov, a site in your cart is held briefly during checkout. Once the hold expires, someone else can book it.
What if I cannot get a reservation at all?
Look for first-come sites, private campgrounds or free dispersed camping on national forest and BLM land near your destination.
How far in advance can you reserve a campsite?
It depends on the agency. Many Recreation.gov campgrounds use a six-month rolling window, some use block releases, and state parks often allow reservations anywhere from a few months to a year ahead. Check the campground page for the exact window.
How do I reserve a campsite at a state park?
Go to your state park system’s official reservation website, create an account, search the park, select your dates and site, and check out. State park booking windows and fees vary by state.
Sources
- Recreation.gov help center: booking windows, cart holds and cancellation policies.
- National Park Service: Yosemite National Park campground reservations.
- National Park Service and USDA Forest Service: first-come, first-served and dispersed camping information.
