Yellowstone National ParkWyoming 1 of 10
Established in 1872, Yellowstone is America's oldest national park. Take the kids to see Old Faithful then hop down to Grand Teton National Park. Your kids will be nothing short of amazed every step of the way.
Glacier National ParkMontana 2 of 10
Glacier's 700 miles of trails offer hikers every opportunity to experience one of the most pristine places in the U.S. Checkout ranger-led activities, and the Family Packs to make sure your children have plenty to do.
Badlands National ParkSouth Dakota 3 of 10
With 37 million year-old fossil beds, this pre-historic park will thrill the scientist in your family. The eroded pinnacles create an almost eerie landscape with endless opportunities to explore.
Rocky Mountain National ParkColorado 4 of 10
Adventurous families can plod to the top of 14,259-foot Long's Peak but those who stick to the 8,000-foot valleys won't miss out on breathtaking views of the Rockies. Don't forget to look for the many animal species that live here, including Bighorn sheep, Abert's squirrels and more.
Redwoods National ParkCalifornia 5 of 10
It's impossible to know their grandeur until you stand beneath the redwoods, especially if you're a small child. But that's not all there is to see. Redwood National and State Parks extend from Northern California into Oregon with stunning views of the Pacific Ocean.
Zion National ParkUtah 6 of 10
Best known for its rust-red slot canyons that glow in the sun's rays, Zion's massive canyon walls and gorgeous waterfalls also impress. Take a family hike or bike ride through the park, or take ranger-guided tours including a two-hour night hike.
Grand Canyon National ParkArizona 7 of 10
Introduce your kids to one of the seven natural wonders of the world. Experience the Grand Canyon by hiking up top, or go rafting down below. Teenagers can enjoy a guided youth expedition, as well.
Death Valley National ParkCalifornia 8 of 10
Tour 3.4 million acres of desert and mountains in Death Valley—the largest national park in the contiguous United States. Sitting 282 feet below sea level, it's also the lowest, hottest and driest valley in the U.S. Check out the Moonlight walk where the whole family can experience the sand dunes after nightfall.
Acadia National ParkMaine 9 of 10
Maine's dramatic coastline sets the stage for Acadia National Park where visitors can hike and bike more than 120 miles of historic trails, perfect for all skill levels. If you don't have hiking-ready kids, ranger-guided boat tours are a great option.