
Hiking at The Narrows in Zion National Park (Utah): Pretty much any US national park is going to offer good hikes, but the amazing Narrows at Zion will be a great addition to your adventure bucket list. Click through the gallery for more daring activities and where to go for them:

Bicycling in Acadia National Park (Maine): Reward yourself with stunning Atlantic Oceans views after tackling the carriage roads of Acadia.

Swimming in Trunk Bay, Virgin Islands National Park (St. John, US Virgin Islands): Release yourself to the clear waters of Trunk Bay, one of the most beautiful beaches in the world.

Beach exploration at Point Reyes National Seashore (California): It's hard to find a better park for coastal explorations. Point Reyes has cliffs, wild surf, marine animals and long stretches of beach to discover.

Horseback riding in Rocky Mountain National Park (Colorado): Saddle up and live out your Western cowboy fantasies in West Horseshoe Park area of Rocky Mountain National Park.

Camping in Denali National Park (Alaska): If you're willing to brave the colder, darker months of the year, you might catch the northern lights in action.

Wildlife encounters in Yellowstone National Park (Wyoming, Montana, Idaho): See the West as it once was, as bison graze in Yellowstone's Lamar Valley. But these majestic animals are just the start. You might see elk, bears, raptors and more.

Scuba diving and snorkeling at Channel Islands National Park (California): Sunlight streams through a forest of giant kelp. This is one dive where the plant life might steal the show from the animals and provide a most unusual diving experience.

White-water rafting in Grand Canyon National Park (Arizona): Daring boaters run Lava Falls Rapid, considered one of the most challenging in the world.

Rock climbing at Joshua Tree National Park (California): A climber takes on a rock face at Joshua Tree, which features thousands of possible climbing routes.

Ice climbing at Pictured Rocks National Lakeshore (Michigan): Ice climbing at Pictured Rocks is one of the ultimate physical challenges you can take on at a US National Park Service site.

People in wheelchairs at Everglades National Park (Florida): People who use wheelchairs can get up close and personal to the water, plants and animals in the Everglades in South Florida.



