What Holidays Are Coming Up in the USA? Unexpected Adventures Await

September 20, 2026  ·  4 min read

The United States is a land of endless discovery, offering a tapestry of landscapes, histories, and cultures. While major holidays often bring to mind bustling city parades or iconic national parks, there's a whole other side to American travel waiting to be explored. If you're wondering what holidays are coming up in the USA and how to make the most of them, prepare to look beyond the usual postcards.

This guide focuses on the truly unique, the genuinely surprising, and the places where untold stories whisper from ancient trees, sun-bleached rock formations, and forgotten forts. Forget the crowded tourist traps; these are the destinations that will ignite your curiosity and offer a deeper connection to the diverse spirit of America.

1. Congaree's Primeval Swamp

Hopkins, South Carolina, USA

This park protects the largest contiguous tract of old-growth bottomland hardwood forest in the United States, featuring some of the tallest trees in eastern North America.

Walk the elevated boardwalk through a primeval swamp forest, marveling at champion trees like loblolly pines and bald cypress that tower over 150 feet. This biodiverse ecosystem is periodically flooded by the Congaree River, creating a unique habitat teeming with wildlife, from otters to massive mosquitoes. It's a rare glimpse into what vast swaths of the American South once looked like.

2. Michigan's Painted Cliffs

Munising, Michigan, USA

Pictured Rocks National Lakeshore features dramatic sandstone cliffs, carved by glacial meltwater and lake erosion, displaying vibrant mineral stains.

Imagine kayaking beneath towering cliffs streaked with reds, greens, and blues from iron, copper, and manganese, some rising 200 feet above the turquoise waters of Lake Superior. These natural masterpieces include formations like Miner's Castle and Chapel Rock, offering a stunning coastal wilderness experience. The ever-changing light plays across the sculpted rock faces, revealing new artistic details throughout the day.

3. Isle Royale's Wild Heart

Houghton, Michigan, USA

This remote island in Lake Superior is a unique wilderness laboratory, famous for its long-running study of wolf and moose populations in an isolated ecosystem.

Accessible only by ferry or seaplane, Isle Royale is one of the least visited national parks, offering a true escape into nature. Hikers can traverse ancient forests and rocky shorelines, spotting moose grazing in the distance or perhaps hearing the howl of a wolf pack. Its isolation has allowed a delicate predator-prey balance to unfold over decades, providing invaluable insights into ecological dynamics.

4. Kansas's Endless Prairie

Strong City, Kansas, USA

The Tallgrass Prairie National Preserve protects one of the last remaining fragments of the once-vast tallgrass prairie ecosystem that covered much of central North America.

Step back in time to an era when bison roamed freely across an ocean of grass. This preserve is home to a working 1881 ranch and a reintroduced herd of bison, allowing visitors to experience the immense scale and delicate beauty of this vital ecosystem. The prairie's deep roots prevent erosion and support incredible biodiversity, creating a landscape that changes dramatically with the seasons.

5. Idaho's Lunar Landscape

Arco, Idaho, USA

Craters of the Moon National Monument preserves a vast ocean of lava flows and volcanic cones, resembling a lunar surface formed by eruptions over thousands of years.

Explore a landscape shaped by recent geological forces, with lava tubes, spatter cones, and fields of jagged a'a and ropy pahoehoe lava. The area has erupted eight times in the last 15,000 years, creating a stark, alien beauty that supports surprising pockets of life. Descend into lava tubes to discover formations in the dark, or hike to the top of a cinder cone for panoramic views of this otherworldly terrain.

6. Florida's Island Fortress

Key West, Florida, USA

Dry Tortugas National Park is a remote cluster of islands 70 miles west of Key West, dominated by Fort Jefferson, a massive 19th-century coastal fortress never fully completed.

Accessible only by boat or seaplane, this park offers pristine coral reefs, abundant marine life, and a dramatic piece of American history. Fort Jefferson, the largest masonry structure in the Americas, was intended to protect the Gulf of Mexico shipping lanes but was never armed to full capacity. Today, its imposing walls stand as a testament to ambition and a sanctuary for migratory birds, surrounded by emerald waters perfect for snorkeling.

7. New Mexico's White Sea

Alamogordo, New Mexico, USA

White Sands National Park is the world's largest gypsum dunefield, where the brilliant white dunes remain cool to the touch even under the desert sun.

Unlike typical sand dunes made of quartz, these dunes are composed of gypsum crystals, creating a dazzling, snow-white landscape that stretches for miles. The unique properties of gypsum mean the sand doesn't absorb heat, making it comfortable to walk barefoot or even sled down. This dynamic environment is home to specially adapted plants and animals, some found nowhere else on Earth, constantly shifting and reshaping with the wind.

8. Arizona's Ancient Forest

Petrified Forest National Park, Arizona, USA

This park is world-renowned for its vast deposits of petrified wood, fossilized remains of an ancient forest over 200 million years old, once a lush tropical landscape.

Wander through vibrant badlands where entire trees have turned to stone, their rings and bark perfectly preserved in quartz. The vivid colors in the petrified wood come from minerals like iron, manganese, and copper, absorbed during the fossilization process. Beyond the ancient trees, the park also protects significant paleontological sites, including dinosaur fossils and human history dating back over 13,000 years, painted across the landscape.

Photography via Pexels. AllTours.ai is an AI audio tour guide — point your camera at any landscape and hear its story.