4. Zion National Park

Utah

Zion National Park’s gorgeous red rock cliffs are the showstopper here. The park is home to two of the most famous hikes in the national park system — Angels Landing and The Narrows. Due to the park’s popularity, visitors can only access it using the shuttle system from mid-March through November. No matter if you’re on the shuttle, in your car, or riding a bike, Zion Canyon’s Scenic Road is awe-inspiring. To avoid some of the crowds, make your way north on Interstate 15 and visit the Kolob Canyons area in the northwest corner of the park.

5. Acadia National Park

Maine

Known as the first place to see the sunrise in the U.S. (at least for half the year), visitors flock to Acadia National Park’s Cadillac Mountain in the early morning hours to watch the Sun leap over the Atlantic Ocean. Once the Sun is up, check the tide charts and venture to the park’s beautiful rocky coast to see Thunder Hole. From 1–2 hours before high tide will be the best time to hear the thunderous roar created by the crashing waves.

The park’s 45 miles of carriage roads offer a unique car-free experience for visitors. Built by John D. Rockefeller Jr. in the early 1900s for exclusive use by horse and carriage, the roads remain car-free today. Walk, bike, or enjoy a carriage ride as you take in some of the best views in the park. Acadia is especially brilliant in the fall when the changing leaves and crisp fall air are simply glorious.