20 best national parks to visit in the US: Explore every steps

Imagine standing at the edge of a vast canyon, feeling the powerful wind sweeping through valleys, or gazing up at the towering, ancient sequoias of a serene forest. The United States national parks offer experiences like these and more, where every step brings new sights and fresh perspectives. With over 63 national parks across the country, each one offers unique charm and adventure, showcasing the beauty of America’s diverse landscapes.

This guide highlights 20 of the most remarkable national parks across the United States. From popular destinations like Yellowstone and Grand Canyon to lesser-known gems, we’ve covered a range of parks with details on must-see attractions, the best times to visit, and insider tips to make your trip as memorable as possible. Whether you’re an avid hiker, a wildlife enthusiast, or simply looking to unwind in nature, these parks have something special waiting for you.

The Best 20 National Parks (Main Attraction)

1. Yellowstone National Park, Wyoming/Montana/Idaho

Quick Overview:
Yellowstone National Park, spanning Wyoming, Montana, and Idaho, is famed for its geothermal features, diverse wildlife, and vast landscapes. Established in 1872 as America’s first national park, Yellowstone remains one of the most iconic parks, attracting millions yearly. Home to Old Faithful, the Grand Prismatic Spring, and herds of roaming bison, it’s a park that appeals to both families and seasoned adventurers.

Top Attractions:

1. Old Faithful Geyser: Known for its timely eruptions every 90 minutes, this geyser is a must-see for visitors.
2. Grand Prismatic Spring: A stunning, vibrant hot spring, the largest in the United States, known for its colorful display.
3. Lamar Valley: Often referred to as the “Serengeti of North America,” this valley is ideal for spotting bison, wolves, and other wildlife.

Best Time to Visit:

• Summer (June to August): The busiest season with most facilities open; ideal for hiking and wildlife watching.
• Winter (December to February): A quieter time with a magical snowy landscape, perfect for snowshoeing and guided snowmobile tours.

Essential Tips:

• Be prepared for varying weather; Yellowstone’s large area means microclimates with different conditions.
• Stay a safe distance from wildlife—especially bison—and follow park rules for a safe visit.
• Consider staying nearby or camping inside the park to make the most of early morning or evening wildlife sightings.

2. Grand Canyon National Park, Arizona

Quick Overview:
The Grand Canyon, a UNESCO World Heritage Site, is known for its breathtaking vastness, layered rock formations, and stunning vistas. Located in northern Arizona, it spans 277 miles of the Colorado River, offering one of the most unforgettable landscapes in the world. Whether hiking down into the canyon or simply taking in the view from the rim, the Grand Canyon is an experience of a lifetime.

Top Attractions:

1. South Rim: The most popular and accessible area, with a variety of scenic viewpoints, trails, and visitor centers.
2. Bright Angel Trail: A challenging but rewarding hike that descends into the canyon.
3. North Rim: A less crowded area with unique viewpoints and a different perspective of the canyon.

Best Time to Visit:

• Spring (March to May) and Fall (September to November): Pleasant temperatures and fewer crowds make these seasons ideal for hiking and exploring.
• Summer (June to August): The hottest and busiest period, especially at the South Rim, requiring extra precautions for heat.

Essential Tips:

• Carry sufficient water and wear sun protection; temperatures can get extreme in the summer months.
• Start hikes early in the morning to avoid midday heat.
• Consider the North Rim for a quieter, more secluded experience (open from mid-May to mid-October).

3. Yosemite National Park, California

Quick Overview:
Nestled in California’s Sierra Nevada mountains, Yosemite National Park is renowned for its majestic granite cliffs, giant sequoias, and impressive waterfalls. This iconic park, designated a UNESCO World Heritage Site, captivates millions of visitors annually with its awe-inspiring landscapes and rich biodiversity.

Top Attractions:

1. El Capitan: An imposing granite monolith popular with climbers; visitors can watch climbers scale this impressive cliff face.
2. Yosemite Falls: One of the tallest waterfalls in North America, especially striking during spring when it’s at peak flow.
3. Mariposa Grove of Giant Sequoias: Home to hundreds of ancient giant sequoias, including the famous Grizzly Giant.

Best Time to Visit:

• Spring (April to June): The waterfalls are at their most powerful, and trails begin opening after winter snow melts.
• Fall (September to November): Cooler weather and smaller crowds make it a great time for hiking and exploring.

Essential Tips:

• Arrive early or use park shuttles to avoid parking issues, especially during peak times.
• Bring layers; temperatures can vary significantly from valley floor to higher elevations.
• If planning to hike Half Dome, secure a permit in advance, as they are limited.

4. Zion National Park, Utah

Quick Overview:
Zion National Park, Utah’s first national park, is a paradise for outdoor enthusiasts, famous for its dramatic cliffs, narrow canyons, and stunning desert landscapes. Known for the renowned Angel’s Landing and The Narrows hikes, Zion offers a blend of adventure and tranquility in its red-rock canyons and river valleys.

Top Attractions:

1. Angel’s Landing: A challenging hike with steep drop-offs, leading to a breathtaking viewpoint of the park.
2. The Narrows: A unique slot canyon hike through the Virgin River, requiring water shoes and extra caution.
3. Canyon Overlook Trail: An easier, family-friendly hike with impressive views of Zion’s stunning rock formations.

Best Time to Visit:

• Spring (March to May) and Fall (September to November): Pleasant temperatures and smaller crowds make these ideal times to explore.
• Summer (June to August): Crowded and very hot, but ideal for water hikes like The Narrows.

Essential Tips:

• Check trail conditions and any permit requirements, particularly for Angel’s Landing.
• Carry plenty of water and sun protection, as much of the park is exposed.
• Use the park’s shuttle system to minimize traffic and access popular trails easily.

5. Great Smoky Mountains National Park, North Carolina/Tennessee

Quick Overview:
Straddling the border of North Carolina and Tennessee, Great Smoky Mountains National Park is the most visited national park in the US. Known for its misty mountain views, vibrant wildflowers, and rich biodiversity, it offers a scenic retreat with plentiful hiking trails and wildlife-watching opportunities.

Top Attractions:

1. Clingmans Dome: The highest point in the park, with a short but steep walk to an observation tower for panoramic views.
2. Cades Cove: A picturesque valley with a loop road perfect for wildlife spotting and historic buildings.
3. Roaring Fork Motor Nature Trail: A scenic loop road that offers easy access to waterfalls and historic sites.

Best Time to Visit:

• Spring (April to May): Wildflowers are in bloom, making trails particularly scenic.
• Fall (October to November): The park is famous for its vibrant autumn foliage, drawing many visitors.

Essential Tips:

• Be prepared for variable weather; the Smoky Mountains are known for sudden fog and rain.
• Arrive early for popular spots like Cades Cove, as they can become crowded.
• For a quieter experience, consider visiting mid-week, especially during peak fall colors.

6. Glacier National Park, Montana

Quick Overview:
Located in the Rocky Mountains of Montana, Glacier National Park is famous for its rugged landscapes, alpine meadows, and crystal-clear lakes. With over 700 miles of trails, it’s known as a hiker’s paradise and a top destination for breathtaking mountain scenery.

Top Attractions:

1. Going-to-the-Sun Road: A scenic drive that traverses the park, offering views of mountains, lakes, and valleys.
2. Grinnell Glacier Trail: A popular hike leading to stunning views of the remaining glaciers.
3. Lake McDonald: Known for its clear waters and colorful pebbles, this lake is a popular spot for kayaking and photography.

Best Time to Visit:

• Summer (July to September): Roads and trails are accessible, and the weather is warm.
• Fall (late September to October): Quieter with cooler temperatures, though some roads and services may close.

Essential Tips:

• Be mindful of the park’s limited services and plan accordingly; there are few lodges or eateries within the park.
• Check for road and trail closures, as snow can linger into summer at higher elevations.
• Carry bear spray and practice safety in bear country, especially on less-trafficked trails.

7. Rocky Mountain National Park, Colorado

Quick Overview:
Rocky Mountain National Park, located in northern Colorado, is known for its impressive alpine scenery, diverse ecosystems, and wildlife, including elk and bighorn sheep. With over 350 miles of trails and the highest continuous paved road in the US, the park offers a true Rocky Mountain experience with both rugged wilderness and accessible scenic drives.

Top Attractions:

1. Trail Ridge Road: Known as the “highway to the sky,” this scenic route reaches over 12,000 feet and offers breathtaking views.
2. Bear Lake: A picturesque, accessible lake with nearby trails, perfect for families and beginner hikers.
3. Longs Peak: A challenging hike for experienced adventurers, reaching the highest summit in the park at 14,259 feet.

Best Time to Visit:

• Summer (June to September): Ideal weather for hiking, with all roads and trails open.
• Fall (September to October): Cooler temperatures, beautiful autumn foliage, and elk rutting season.

Essential Tips:

• Be prepared for high altitudes; pace yourself and stay hydrated to prevent altitude sickness.
• Arrive early or consider the park shuttle to avoid parking issues at popular trailheads.
• Wear layers, as temperatures can drop significantly at higher elevations, even in summer.

8. Acadia National Park, Maine

Quick Overview:
Acadia National Park, located along the rugged coast of Maine, is a unique mix of mountains, ocean shores, and forests. Known for its coastal beauty and sweeping views, Acadia offers diverse activities, from hiking and cycling to tide-pooling and stargazing.

Top Attractions:

1. Cadillac Mountain: The tallest peak on the East Coast, where you can be among the first in the US to see the sunrise.
2. Jordan Pond: A scenic lake surrounded by mountains, with a trail that offers panoramic views.
3. Sand Beach: A rare sandy beach along the Maine coast, great for picnicking and tide-pooling.

Best Time to Visit:

• Summer (June to August): Pleasant weather, though popular with tourists.
• Fall (September to October): Stunning autumn foliage with fewer crowds.

Essential Tips:

• For a unique experience, plan to watch the sunrise from Cadillac Mountain, but arrive early as it gets busy.
• Use the free Island Explorer shuttle to get around the park and avoid parking issues.
• Wear sturdy footwear, as many trails involve rocky terrain.

9. Olympic National Park, Washington

Quick Overview:
Olympic National Park in Washington State is a diverse landscape that includes rugged coastlines, lush rainforests, and glacier-capped mountains. This variety of ecosystems makes it a unique destination where visitors can explore a rainforest one day and snowy peaks the next.

Top Attractions:

1. Hoh Rain Forest: A verdant rainforest with moss-covered trees, ferns, and rich biodiversity.
2. Hurricane Ridge: A mountain area with stunning views and accessible trails.
3. Ruby Beach: A scenic beach with tide pools, sea stacks, and driftwood-strewn shores.

Best Time to Visit:

• Summer (July to September): Warm and mostly dry, with access to high-altitude areas.
• Spring (April to June): Lush green rainforests and fewer visitors, though it may be rainy.

Essential Tips:

• Pack rain gear, as parts of the park experience frequent rainfall, especially in the rainforest areas.
• Be mindful of tides when exploring beaches, and check tide schedules in advance.
• Bring a variety of clothing, as temperatures vary greatly across the park’s ecosystems.

10. Arches National Park, Utah

Quick Overview:
Arches National Park, located in southeastern Utah, is famous for its over 2,000 natural stone arches and dramatic red rock landscapes. Known for the iconic Delicate Arch and other stunning formations, Arches is a photographer’s paradise and a great destination for exploring unique geology.

Top Attractions:

1. Delicate Arch: The most iconic arch, standing alone against a scenic landscape.
2. Double Arch: A pair of connected arches that offers a unique perspective for visitors and photographers.
3. Devils Garden Trail: A popular trail with several arches along the way, ideal for avid hikers.

Best Time to Visit:

• Spring (March to May) and Fall (September to November): Comfortable temperatures make these the ideal seasons for hiking.
• Winter (December to February): Quieter and cool, but roads may occasionally close due to weather.

Essential Tips:

• Carry plenty of water, as the desert climate can be dehydrating even in cooler months.
• Visit popular sites early in the morning or near sunset to avoid the hottest part of the day.
• Avoid stepping on cryptobiotic soil crust, which is crucial for the desert ecosystem.

11. Grand Teton National Park, Wyoming

Quick Overview:
Grand Teton National Park in Wyoming is known for its striking, jagged mountain range, serene lakes, and abundant wildlife. Located near Yellowstone, it offers a quieter experience with equally breathtaking landscapes, perfect for outdoor activities like hiking, boating, and wildlife spotting.

Top Attractions:

1. Jenny Lake: A scenic lake with boat rides and trails offering incredible views of the Teton Range.
2. Schwabacher Landing: A lesser-known spot with a perfect reflection of the Tetons in the Snake River.
3. Cascade Canyon Trail: A challenging hike that takes you deep into the mountains, with views of waterfalls and wildlife.

Best Time to Visit:

• Summer (June to September): Best weather and access to trails, though busier.
• Fall (September to October): Stunning autumn colors and fewer crowds.

Essential Tips:

• Early mornings and late evenings are ideal for spotting wildlife such as moose, bison, and bears.
• Check for bear activity reports and carry bear spray on hikes.
• For a quieter experience, explore the park’s northern areas, which are less crowded than Jenny Lake.

12. Sequoia and Kings Canyon National Parks, California

Quick Overview:
Sequoia and Kings Canyon National Parks are neighboring parks in California, renowned for their giant sequoias, including the world-famous General Sherman Tree. With dramatic landscapes featuring towering trees, deep canyons, and rugged mountains, these parks provide a unique blend of natural beauty and tranquil forested areas.

Top Attractions:

1. General Sherman Tree: The largest tree by volume in the world, located in the Giant Forest.
2. Moro Rock: A granite dome offering panoramic views of the Great Western Divide.
3. Kings Canyon Scenic Byway: A scenic drive through a deep glacial canyon with river views and waterfall stops.

Best Time to Visit:

• Summer (June to August): Ideal for hiking and full access to trails and roads.
• Fall (September to November): Cooler weather, fewer visitors, and beautiful autumn colors.

Essential Tips:

• Expect limited cell service in the park; plan accordingly for navigation.
• Bring layered clothing, as temperatures can vary greatly between shaded forest areas and exposed viewpoints.
• Respect park guidelines to protect the delicate ecosystem around the giant sequoias.

13. Joshua Tree National Park, California

Quick Overview:
Joshua Tree National Park is famous for its unique desert landscapes, rugged rock formations, and the iconic Joshua trees that dot the landscape. The park offers a variety of activities from stargazing to rock climbing, making it a beloved destination for adventure seekers and nature lovers alike.

Top Attractions:

1. Hidden Valley: A popular area with easy trails and interesting rock formations.
2. Cholla Cactus Garden: A striking area where dense cholla cacti grow, especially beautiful at sunrise or sunset.
3. Keys View: A viewpoint offering panoramic views of the Coachella Valley, Salton Sea, and San Andreas Fault.

Best Time to Visit:

• Spring (March to May) and Fall (October to November): Comfortable temperatures make it ideal for hiking and climbing.
• Winter (December to February): Quieter and cooler, though temperatures can drop sharply at night.

Essential Tips:

• Pack plenty of water and sunscreen, as the desert environment can be harsh.
• Nighttime stargazing is a must; bring a telescope or binoculars for the best experience.
• Watch for rattlesnakes, especially in warmer months, and avoid walking off trails.

14. Everglades National Park, Florida

Quick Overview:
Everglades National Park is a unique wetland ecosystem in southern Florida, known for its diverse wildlife, including alligators, manatees, and a variety of bird species. With vast marshlands and mangroves, it offers opportunities for boating, wildlife watching, and exploring a rich, subtropical environment.

Top Attractions:

1. Anhinga Trail: A short, accessible boardwalk trail great for spotting alligators and wading birds.
2. Shark Valley: Offers a scenic tram tour and a 65-foot observation tower with views across the Everglades.
3. Flamingo Visitor Center: A popular area for boating, with opportunities to spot manatees and other wildlife.

Best Time to Visit:

• Winter (December to April): The dry season, when wildlife is easier to spot, and mosquitoes are less prevalent.
• Late Fall (November): Early dry season offers cooler temperatures and fewer crowds.

Essential Tips:

• Wear long sleeves and bug spray, as mosquitoes can be intense in certain areas.
• Stay on designated trails to avoid disturbing wildlife and for personal safety.
• Consider a guided tour for a richer understanding of the park’s complex ecosystem.

15. Bryce Canyon National Park, Utah

Quick Overview:
Bryce Canyon National Park is known for its unique red rock hoodoos—tall, thin spires of rock that create a surreal landscape. Located in southern Utah, Bryce Canyon offers a distinctive desert landscape that’s ideal for hiking, stargazing, and photography.

Top Attractions:

1. Bryce Amphitheater: The park’s main area with the highest concentration of hoodoos.
2. Navajo Loop Trail: A short but steep trail descending into the canyon, passing famous formations like Thor’s Hammer.
3. Sunset Point: A scenic overlook with stunning sunset views that illuminate the hoodoos.

Best Time to Visit:

• Spring (April to June) and Fall (September to October): Cooler temperatures make for ideal hiking conditions.
• Winter (December to February): Less crowded with a chance to see hoodoos dusted in snow, though some trails may close.

Essential Tips:

• Bring plenty of water; the dry desert air can be dehydrating, even in cooler months.
• Use hiking poles on steep trails, as some areas can be slippery.
• Consider visiting early in the morning or late in the day for cooler temperatures and softer lighting.

16. Denali National Park and Preserve, Alaska

Quick Overview:
Denali National Park in Alaska is home to North America’s tallest peak, Denali (formerly Mount McKinley), towering at 20,310 feet. Known for its vast wilderness, the park offers unique wildlife, tundra landscapes, and views of the iconic mountain, making it a paradise for nature lovers and photographers.

Top Attractions:

1. Denali Peak: Visible on clear days from various points in the park; even a glimpse of this towering mountain is memorable.
2. Savage River Area: Offers short trails and wildlife viewing opportunities with incredible scenery.
3. Wonder Lake: A scenic spot known for its reflections of Denali, perfect for photography.

Best Time to Visit:

• Summer (June to September): Warmer weather and access to park facilities and shuttle buses.
• Fall (late August to early September): Vivid autumn colors and fewer visitors, though weather can be unpredictable.

Essential Tips:

• Dress warmly, even in summer; Alaska’s weather can change rapidly, and temperatures drop at higher elevations.
• Take a shuttle bus deep into the park for the best chances of spotting wildlife and scenic views.
• Plan for limited facilities; Denali is remote, so bring essentials and food.

17. Crater Lake National Park, Oregon

Quick Overview:
Crater Lake National Park, located in southern Oregon, is famous for its incredibly deep blue lake, formed over 7,700 years ago after the eruption of Mount Mazama. Known for its stunningly clear water, Crater Lake is the deepest lake in the United States and offers some of the most picturesque views in the country.

Top Attractions:

1. Rim Drive: A 33-mile scenic drive that circles the lake with various lookout points, each offering unique perspectives.
2. Wizard Island: A cinder cone island in the lake that can be accessed via boat tours for hiking and exploring.
3. Cleetwood Cove Trail: The only trail down to the lake’s shore, ideal for swimming or taking a boat tour.

Best Time to Visit:

• Summer (July to September): Roads and trails are fully open, and the weather is ideal for boat tours and hikes.
• Winter (December to April): Snow transforms the park into a winter wonderland, popular for cross-country skiing and snowshoeing.

Essential Tips:

• Expect cooler temperatures at high elevations; even in summer, the lake’s surface can be quite chilly.
• Make boat tour reservations in advance, as they fill up quickly.
• Check road conditions if visiting in winter, as heavy snowfall often closes parts of the park.

18. Great Sand Dunes National Park and Preserve, Colorado

Quick Overview:
Great Sand Dunes National Park, located in southern Colorado, features the tallest sand dunes in North America, set against the backdrop of the Sangre de Cristo Mountains. With unique activities like sandboarding and a stunning night sky, it’s a fantastic destination for all ages.

Top Attractions:

1. High Dune: The tallest dune, which offers sweeping views of the surrounding sandscape.
2. Medano Creek: A seasonal creek that runs at the base of the dunes, popular for wading and sand play, especially for families.
3. Stargazing: Recognized as a Dark Sky Park, making it an ideal location for spotting constellations and the Milky Way.

Best Time to Visit:

• Spring (April to June): When Medano Creek is flowing, adding a unique water feature to the park.
• Fall (September to October): Cooler temperatures and fewer visitors.

Essential Tips:

• Pack sturdy shoes and be prepared for hot sand; the surface temperature can rise significantly in summer.
• Visit early or late in the day to avoid the hottest times and to catch sunrise or sunset over the dunes.
• Bring a board or rent one at local shops to try sandboarding, a popular activity here.

19. Glacier Bay National Park, Alaska

Quick Overview:
Glacier Bay National Park in Alaska is known for its stunning glacial landscapes, fjords, and marine wildlife. Accessible mostly by boat or air, it offers a remote and pristine wilderness experience with views of tidewater glaciers calving into the ocean.

Top Attractions:

1. Glacier Viewing by Boat: Boat tours offer close views of tidewater glaciers like Margerie Glacier, where visitors can witness ice calving.
2. Bartlett Cove: The park’s main access point, with hiking trails and the Glacier Bay Visitor Center.
3. Wildlife Viewing: Frequent sightings of whales, sea otters, seals, and bald eagles make this a popular destination for animal lovers.

Best Time to Visit:

• Summer (May to September): The best weather and the season for boat tours, with extended daylight hours.
• Early Fall (September): Quieter with fewer visitors but may see early snowfall.

Essential Tips:

• Dress in layers and bring waterproof gear, as weather can be unpredictable.
• Take advantage of ranger-led programs, which offer insight into the park’s glaciology and wildlife.
• Book boat tours in advance, as they are the primary way to explore the park’s major sights.

20. Shenandoah National Park, Virginia

Quick Overview:
Shenandoah National Park, located along the Blue Ridge Mountains in Virginia, is famous for its scenic Skyline Drive, cascading waterfalls, and abundant hiking trails. Known for its stunning fall foliage, Shenandoah offers a scenic retreat for visitors seeking tranquility and natural beauty.

Top Attractions:

1. Skyline Drive: A scenic road running the length of the park with 75 overlooks offering panoramic views.
2. Old Rag Mountain: A challenging hike with rock scrambles and rewarding views at the summit.
3. Dark Hollow Falls Trail: A shorter trail leading to one of the park’s most picturesque waterfalls.

Best Time to Visit:

• Fall (October): Peak season for fall foliage, when the park’s trees turn vibrant shades of red, orange, and yellow.
• Spring (April to May): Pleasant temperatures, wildflowers, and budding greenery make for a scenic visit.

Essential Tips:

• Arrive early during fall weekends, as Skyline Drive can become congested with leaf-peepers.
• Wear sturdy shoes and bring plenty of water for hikes, especially those with steep or rocky sections.
• Pick up a park map or download offline maps, as cell service can be limited in certain areas.