Camping is a year-round adventure but some of the nation's most scenic places become that much more beautiful and accessible come spring and summer. Whether you're driving across country in a luxe RV or traversing the backcountry with a tent inside your backpack, these stops are all but guaranteed to leave a lasting impression.

Unless you have a backcountry permit, camping in Oregon's Crater Lake National Park is limited to the Mazama and Lost Creek Campgrounds, which are only open during the summer months. The former takes reservations and is able to accommodate RVs while the latter is open to tents only on a first-come, first-served basis.

Travelers planning an overnight camping trip in Acadia National Park on Maine's Mount Desert Island would be wise to make reservations in advance as the campgrounds here are extremely popular, especially during the warmer months from May to October. Blackwoods Campground is open year-round while sites at Seawall, Schoodic Woods and Duck Harbor Campgrounds are available seasonally.

Scenic Shenandoah National Park in Virginia is home to five gorgeous campgrounds, including Mathews Arm, Big Meadows, Lewis Mountain, Loft Mountain and Dundo Group Campgrounds. The latter is ideal for large groups as it boasts three sites that can accommodate anywhere from seven to 20 campers.

New York's expansive Adirondack Mountains are home to countless campgrounds so your options truly are endless. Take your pick from traditional camping, backcountry camping, RV camping, island camping or even glamping.

This beloved Pennsylvania state park spans more than 13,000 acres and boasts plenty of eye candy ranging from Lake Jean to the seven-plus mile long Falls Trail loop. The latter features a series of free-flowing waterfalls and has been recognized as one of the best hikes in the state.

Maryland's Assateague Island National Seashore is a unique camping experience as visitors will be just steps away from the Atlantic Ocean and in the midst of wild ponies and other coastal wildlife.

Denali National Park and Preserve in Alaska is a massive swath of wilderness spanning six million acres so there's no shortage of places to set up camp. Keep in mind that Riley Creek Campground is the only campground in the park that's open year-round. Plan a summer visit-mid-May to September-and your options will increase six-fold.

California's Joshua Tree National Park is among the most popular camping spots in the country so your best bet to secure a site is to plan ahead. There are at least nine campgrounds in the park but many operate on a first-come, first-served basis. Therefore, consider making reservations at Black Rock, Indian Cove, Sheep Pass or Cottonwood Group Campgrounds.

To the northwest, Pfeiffer Big Sur State Park's stellar sights and sounds make it an incredibly popular camping destination. Despite there being dozens of RV and tent camping sites near the Big Sur River, reservations tend to fill up months in advance. Be sure to secure your site online well ahead of time to ensure you'll be able to see what all the fuss is about.

Like many national parks across America, Washington's Olympic National Park can get crowded in the summer. Consider making reservations at Kalaloch or Sol Duc Campgrounds in advance because the rest are first-come, first-served.

Bartlett Cove Campground is where you'll want to stay the night inside Alaska's Glacier Bay National Park. The free walk-in campground is maintained by the National Park Service and features helpful amenities like a warming shelter and free firewood all within close proximity to feeding whales.

The Kalalau Trail along Hawaii's Napali Coast is among the most satisfying in the U.S. While camping here isn't exactly easy, it's not impossible. Keep in mind that experienced backcountry campers and hikers will have an easier time securing a permit to spend the night under the stars.

Big Bend National Park near the U.S.-Mexico border in Texas offers both developed campground and backcountry camping opportunities. Depending on the time of year, reservations are accepted at both the Chisos Basin and Rio Grande Village Campgrounds. All two dozen sites at the Cottonwood Campground are available on a first-come, first-served basis.

Utah's first national park is as beautiful as they come. The clear blue sky supplies the perfect backdrop for Zion National Park's humbling sandstone cliffs. The jaw-dropping formations are every bit as impressive under the stars. Campers will especially fall in love with Watchman Campground, which is open year-round and available via reservation from March through October.

Montana's breathtaking Glacier National Park is home to more than a dozen drive-in campgrounds, most of which are first-come, first-served. If you want to guarantee you'll have a spot to unwind, look into Fish Creek, St. Mary, Many Glacier and Apgar Group Campgrounds for reservations.

Located not far from Jackson Hole, Grand Teton National Park is a nature lover's dream come true during the summer, when travelers flock to northwest Wyoming to hike, fish, hunt and, of course, go backcountry camping. Otherwise, there are at least five front-country campgrounds you can stay at.

Sawtooth National Forest covers more than two million acres in Idaho and Utah and draws millions of visitors each year thanks to its 80-plus campgrounds, plentiful hiking and biking trails and unparalleled photo opportunities. Whatever you decide to do, don't leave without exploring Redfish Lake.

Situated between Lake Michigan and Hamlin Lake on the shores of western Michigan, Ludington State Park features a unique mix of forest and sand dunes and offers visitors four different campgrounds to choose from, including Pines, Cedar, Beechwood and Jackpine.

Most visitors camping at the Grand Canyon tend to stay on the South Rim, which is open year-round and easier to access. The North Rim on the Utah side is ideal for a more secluded stay. However, the elevation limits the season to the summer months. Regardless of which route you go, you'll want to make reservations.

Great Smoky Mountains National Park along the Tennessee-North Carolina border offers camping opportunities to suit every style, whether its backcountry, front-country, group camping or horse camping. There are at least 10 developed campgrounds, including locations at Abrams Creek, Cades Cove, and Smokemont, among others.

The spring is arguably the best time of the year to spend a couple of nights in South Dakota's Badlands National Park. The Cedar Pass Campground is open from April 1 to October 31, 2018, conveniently located near a visitor center and charges affordable rates, starting at $22 per night for a two-person site.

If you prefer solitude and a more primitive style of camping, Ozark National Forest in Arkansas should be at the top of your list as it's home to multiple wilderness areas where you'll be able to pitch a tent and unwind in nature. Nonetheless, visitors can also experience the Ozarks via RV, cabin or developed campsites.

Florida's Everglades National Park has bounced back quickly from Hurricane Irma and visitors to the scenic wetlands preserve will be happy to find all areas of the park are once again open. Backcountry campers can head to the Flamingo Visitor Center or the Gulf Coast Visitor Contact Station to obtain a free permit for an overnight stay in the park.

There are plenty of campgrounds to choose from inside Yosemite National Park but they all tend to fill up quickly from April to September so reservations are highly recommended. In addition to planning well in advance, consider a campground outside of the popular Yosemite Valley to secure a more natural site with fewer crowds.

Colorado's Black Canyon of the Gunnison National Park comprises 12 miles or one-quarter of the jaw-dropping Black Canyon of the Gunnison River, including the deepest section. Campers will want to set up shop in the South Rim Campground, which boasts 88 sites.

Yellowstone National Park spans three different states so it should come as no surprise that there are a lot of camping options here. Mammoth Campground is open all year long while 11 others are open during the warmer spring and summer months beginning in April and May.

The best camping experience in Arkansas' Hot Springs National Park can be found at Gulpha Gorge Campground, which can accommodate RVs and tents on a first-come, first-served basis. The campground is pet-friendly and close to scenic hiking trails.

Arches National Park is named for its more than 2,000 natural sandstone arches that will have campers feeling as if their on an entirely different planet. Notable attractions include the Delicate Arch, Balanced Rock and Landscape Arch. Be sure to reserve your site at the Devils Garden Campground months in advance if visiting March through October.

Camping at Minnesota's Voyageurs National Park is a little more challenging than other places as campsites here are only accessible by watercraft. If you don't own a boat and don't want to rent one you can camp via tent or RV just outside of the park.

Camping season at Mount Rainier National Park kicks off in late May and continues through September. Cougar Rock, Ohanapecosh and White River Campgrounds are the first to open in late spring while primitive camping at Mowich Lake is available starting in early July. Both Cougar Rock and Ohanapecosh accept reservations.