Arches National ParkLocation: Southeastern Utah
Known for: The largest concentration of natural sandstone arches.
Biggest crowds: Spring and fall
Accessibility: Many of the arches can be viewed from your car.
Why kids like it: Walking through rock windows and playing in sand dunes is like taking a trip to Mars.
What hikers say: Awe-inspiring scenery and thrilling walks on the tops of sandstone fins make this place hard to forget.
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Bryce Canyon National ParkLocation: Southern Utah
Known for: Bright, red-orange rocks in bizarre shapes.
Biggest crowds: July through September
Accessibility: You can view much of the park from scenic overlooks along the road.
Why kids like it: Exploring the hoodoos is like wandering through a giant maze.
What hikers say: You'll see some amazing colors at sunrise and sunset at the naturally carved-out amphitheaters.
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Canyonlands National ParkLocation: Southeastern Utah
Known for: Biking on White Rim Road, whitewater rafting, and canyons as far as the eye can see.
Biggest crowds: Spring and fall
Accessibility: It's easy to see three mountain ranges and countless canyons.
Why kids like it: They'll almost be able to see home from here—no matter where home is!
What hikers say: You'll find some of the best hikes in the world here.
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Capitol Reef National ParkLocation: Southern Utah
Known for: The 100-mile long Waterpocket Fold.
Biggest crowds: Spring and early summer
Accessibility: Many of the park's historic sites are close to the road.
Why kids like it: Picking fruit in the orchards at historic Fruita and seeing mule deer up close.
What hikers say: A huge backcountry plus light traffic equals solitude and beauty.
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Zion National ParkLocation: Southern Utah
Known for: Sheer 2,000-foot cliffs and river-carved canyons.
Biggest crowds: April through October
Accessibility: Scenic drive leads to many features and easily-accessible trails.
Why kids like it: Swimming and tubing the Virgin River is a great antidote for the summer heat.
What hikers say: Hiking the Narrows and the Subway are life-list activities.
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