15 Otherworldly Hiking Trails That Will Make You Feel As Though You’ve Stepped Onto Another Planet

Located in Washington's wondrous Olympic National Park, Hoh Rain Forest is an enthralling emerald oasis. One of the only temperate rainforests in the world, wandering through Hoh Rain Forest feels like stepping into another world altogether. The rainforest gets a staggering 12-14 feet of rain annually, which gives this thriving ecosystem its verdant canopy of mosses, ferns, and trees. The "Green Giant" is one of Hoh's most extraordinary trees; a towering presence keeping watch over the forest. In terms of hikes, the Hall of Mosses and the Spruce Nature Trail are both beginner-friendly, and while short in distance, they don't skimp on scenic splendor. Filled with untamed mosses and hanging ferns, old-growth trees, and an abundance of wildlife, Hoh Rain Forest is a lush wonderland within the Washington wilds, and hiking in this park truly belongs on every adventurer's bucket list.

A place of sublime and awe-inspiring splendor, Oregon's Smith Rock State Park is truly remarkable. Competitive climbers come from all over the world to scale its towering buttes, but some of the park's most breathtaking vistas are actually found on the trails. The Canyon to Rim Loop, for example, is a loop trail that's just over three miles long. Due to the elevation gain, this trek is rated as moderate -- and your knees and leg muscles will quickly remind you that even though you're not rock climbing, you're definitely still climbing. The payoff, however, is well-worth any weary limbs: from your perch, you'll see for miles and miles, enjoying 360-degree panoramas that feature some of the park's most celebrated wildlife, including blue heron and cougars.

One of Idaho’s most unique parks, Craters of the Moon National Monument is best-known for its otherworldly landscape and volcanic features. Consisting of lava flows, cinder cones, and endless sagebrush, the terrain of Craters of the Moon is hypnotizing in its rugged beauty that's best explored on foot. The Devil’s Orchard Trail is one way to see and experience some of this park's unique history. This trail takes you through a small area of cinder beds and pieces of the North Crater Wall. This loop trail is only 0.5-miles long, and it traverses the park's most unbelievable -- and frankly, unsettling -- landscapes. What's more, the trail is paved the entire way, allowing all individuals to experience their very own "lunar" adventure... in Idaho.

One of the most breathtakingly beautiful places in the country, Yellowstone National Park is a true world wonder. A place of otherworldly beauty, anyone who visits this national park will immediately understand why this landscape has long captured the hearts of wanderers and adventurer seekers. Going even further back, many indigenous tribes trace their roots – in myth and in history – to Yellowstone, and when settlers made their way West, their reports were initially written off as lies, because Yellowstone's beauty truly is transcendental. One of the hallmarks of the park is the Midway Geyser Basin, where you’ll find beautiful thermal features and the absolutely magical Grand Prismatic Spring. Grand Prismatic is a stunningly beautiful hot spring that's known for its bright rainbow of colors created by bacterial mats and living organisms in the superheated water. It's a feast for the eyes that can be viewed in all its glory Grand Prismatic Overlook, the hike to which is a mere 1.2 mile, out-and-back trail. From here, you'll get so close to the spring that you'll feel the steam rising from this magnificent marvel.

South Dakota is an immensely beautiful state, and nowhere is this more true than the Badlands. The massive 242,756 acres known as Badlands National Park is a total show stopper; it offers varied landscaping with sharp buttes and pinnacles among its untouched prairie expanse. Home to numerous different wildlife species, it's also a favorite spot for birdwatching, photography, and stargazing. The sunsets here are surreal, and absolutely worth seeking out, and we recommend doing so a la the Boardwalk Trail, a short-and-sweet, 0.25-mile trek that's perfect for explorers of all ages and offers jaw-dropping park vistas.

One of the most unique and awe-inspiring places in the country, Bryce Canyon National Park is a sea of red rocks, pink cliffs, and endless vistas. It’s a hiker’s paradise, a fantastic place to camp, and boasts incredible views and top-notch stargazing. With regard to must-take treks, the Queens Garden-Navajo Loop Trail at Bryce is a visitor favorite. You'll drop right down amongst the hoodoos along the three-mile loop trail, and feel as though you've entered the pages of a bizarre -- yet wholly wonderful -- Dr. Seuss fantasy.

Arizona's Horseshoe Bend is quite literally a horse of a different color. Similar to the Grand Canyon (it's referred to as the "east rim" of the Grand Canyon, in fact), Horseshoe Bend is a place that simply must be admired from above. A 1.25-mile hike across barren, unforgiving landscape leads to the cliffside of Horseshoe Bend, which materializes almost as a desert mirage. One of the most photographed sites in Arizona, it is truly as beautiful in person as it is in photos. The cerulean blue and emerald green horseshoe stands out like a dazzling gem against the coppery red desert landscape, making this spot one of the true treasures of the West, and certainly a hike worth seeking out.

A place of immense splendor, Carlsbad Caverns in New Mexico is unimaginably beautiful. Located 20 miles outside of the city of Carlsbad, this extraordinary natural wonder is a limestone cave that was once part of an underwater reef in an inland sea. Put in perspective, the body of water that formed the cavern was on the Earth 250 to 280 million years ago. Today, visitors can explore this otherworldly expanse on two trails: The Big Room and Natural Entrance. We're partial to the former; it's the largest single cave chamber in the United States and features stunning formations such as the fabled Sword of Damocles. As a bonus, at just 1.25 miles long, this hike is suitable for everyone looking for a bucket-list adventure underground.

While the Everglades often rank at the top of most adventurer's Florida bucket lists, Circle B Bar Reserve is an hidden gem boasting equally extraordinary flora and fauna. A former cattle ranch, this 1,267-acre reserve within Polk County is now protected land and visitors can explore a different aspect of wild nature in Florida. Spend the day hiking the vast nature trails throughout and keep an eye out for wildlife that call this reserve home. During the golden hour, there's a haunting, hazy beauty to this park that can only be described as otherworldly.

Within the rolling hills of west-central Kentucky, nestled on the edge of America's Southern Appalachian Region, lies an underground world millions of years in the making. Mammoth Cave is one of the greatest wonders in the country -- and the world. This massive cavern system features some 400 miles of underground caverns and passageways, with more miles being added all the time. The Historic Tour is *the* must-take hike at Mammoth Cave, a guided, two-mile journey into what feels like the center of the Earth. Exploring Mammoth Cave will have you marveling over how there could be a whole other world hiding right beneath our feet, and feeling immensely grateful that it does.

Michigan is often referred to as the "Third Coast" because it boasts more miles of shoreline than any other state in the contiguous U.S. And indeed, Michigan is home to some truly beautiful bodies of water -- and, subsequently, some of the best sand in the world. You'll find this magical marriage at Sleeping Bear Dunes National Lakeshore, an otherworldly paradise located on the north side of Lake Michigan. Its coastal views look positively Caribbean, with stunning sunsets and perfect panoramas. And those tropical, white sand shores you're seeking? Sleeping Bear's dunes themselves are as impressive as they are scenic, with some measuring up to 450 feet tall. In terms of hikes, the 1.4-mile Cottonwood Hiking Trail is a tour de force of the park's rolling landscape, while the Dune Climb boasts some truly mesmerizing views of Lake Michigan.

"Otherworldly" is a subjective term, and while volcanic deserts, bold red hoodoos, and colorful geysers certainly fit the bill, there is a place of such immense beauty in the Northeast corner of the country that it can only be described as, well, not of this world. White Mountain National Forest spans 800,000 acres between New Hampshire and Maine, with its geography containing dense hardwood forests and towering alpine peaks. Come fall, this landscape takes on an etherial beauty that's so golden, the entire forest seems to have a halo. Hiking opportunities abound on the Forest, too, from easy strolls into the wooded environment to challenging climbs above tree line. The Albany Mountain Trail is particularly lovely, offering stunning vistas along an accessible, 4.2-mile path. It's one of many, many trails, however; with over 1,200 miles of trails to explore, you'll find ample opportunities for challenge, adventure, and renewal in White Mountain National Forest.

Pretty much *any* Hawaii hike is going to offer sublime, otherworldly splendor; but in terms of an experience that will turn your perspective upside down, nothing compares to the Waimoku Falls via Pipiwai Trail at Haleakala National Park. The 3.8-mile hike itself is relatively flat and easy to hike. You’ll only ascend 932 feet across the entirety of the trail. There are extraordinary and unique features all the trail, including a section through a dense, beautiful bamboo forest that will have you feeling like Alice in Wonderland.

Alaska is a place of ethereal elegance and beauty, and Mendenhall Glacier is the state's crown jewel. The ice caves located at the Mendenhall Glacier in Juneau, Alaska, are natural ice formations in one of the most extraordinary places on the planet. Calling the Mendenhall Glacier "caves" is a misnomer; this place is an entire frozen kingdom that is 13.6 miles long with an estimated total area of 38 square miles. In terms of hikes, the visitor center in Juneau offers educational information and walking trails and is open all year long. Traveling to the ice caves can be a very rewarding experience, yet also very dangerous, so for most explorers, Mendenhall Glacier is best explored with a pro. A place of immense beauty and splendor, there's nowhere in the world like the ice caves at Mendenhall Glacier, and experiencing this natural wonder in person will be something you'll never, ever forget.