Best National Parks to Visit in May: A Complete Guide

May is one of the most magical times to explore the national parks of the United States. If you are deciding to visit National Parks in the US, we have covered all the best National Parks to visit in May. Unlike the crowded summer months, May offers a sweet spot—perfect weather, fewer visitors, and an overall more intimate experience with nature.

If you’re craving an adventure filled with breath taking views, rich history, and unforgettable outdoor activities, parks like Yellowstone, Glacier, Acadia, and Great Basin should be at the top of your list. Each of these destinations has its own unique charm—geysers erupting in Yellowstone, dramatic peaks in Glacier, rugged coastlines in Acadia, and stargazing like nowhere else in the Great Basin. Whether you’re planning a trip with family, your significant other, or a group of adventure-seeking friends, this guide will help you make the most of your national park getaway in May.

We’ll cover why these parks shine in May, must-do activities, entry fees, and essential rules and regulations to ensure a smooth, enjoyable, and responsible visit. Ready to step into the wild? Let’s dive in!

Top National Parks to Visit in May

1. Yellowstone National Park

Yellowstone National Park, located in Wyoming, Montana, and Idaho, is one of the best national parks to visit in May in the U.S. May is an excellent time to visit because wildlife is highly active, and the park is not yet overwhelmed with summer crowds. Snow begins to melt, opening more roads and trails, and geysers like Old Faithful create mesmerizing steam against the cooler air.

Best Activities in May

• Wildlife Watching: Spot bears, bison, elk, and wolves.
• Hiking: Trails like Fairy Falls and Lamar Valley offer great views.
• Geothermal Features: Explore geysers, hot springs, and mud pots.

Entry Fee

• $35 per vehicle, valid for seven days
• $20 per individual on foot or bike
• Annual Yellowstone Pass: $70

Rules and Regulations

• Do not approach wildlife; keep a minimum distance of 100 yards from bears and wolves.
• Stay on boardwalks near geothermal features to prevent injuries.
• Camping only in designated campgrounds.
• No feeding wildlife or leaving food unattended.

2. Glacier National Park

Glacier National Park in Montana is a breath taking destination known for its snow-capped mountains, turquoise lakes, and abundant wildlife. May is a great time to visit because the lower-elevation trails start opening. You can enjoy the park before peak summer crowds arrive. It is among the one of the best National Parks to visit in May.

Best Activities in May

• Scenic Drives: Going-to-the-Sun Road (partially open in May) offers spectacular views.
• Hiking: Try Avalanche Lake Trail for a moderate but rewarding hike.
• Wildlife Viewing: Look for mountain goats, bears, and moose.

Entry Fee

• $35 per vehicle, valid for seven days
• $20 per person on foot or bicycle
• Annual Glacier Pass: $70

Rules and Regulations

• Hiking in groups is recommended due to bear activity.
• Pets are not allowed on most trails.
• Fire restrictions may be in place.
• Leave no trace; pack out all trash.

3. Acadia National Park

Acadia National Park is the best National Parks to visit in May. Acadia National Park in Maine is famous for its rugged coastline, lush forests, and stunning sunrises. May is an ideal time to visit because temperatures are comfortable, and the summer crowds have not yet arrived.

Best Activities in May

• Hiking: Cadillac Mountain and Jordan Pond Path offer incredible views.
• Biking: Ride the historic Carriage Roads.
• Photography: Capture breath taking coastal scenery.

Entry Fee

• $30 per vehicle, valid for seven days
• $15 per person on foot or bicycle
• Annual Acadia Pass: $55

Rules and Regulations

• No drone flying is allowed.
• Campfires are only allowed in designated areas.
• Respect wildlife and maintain a safe distance.
• Stay on trails to protect fragile ecosystems.

4. Great Basin National Park

Great Basin National Park is considered the best National Parks to visit in May. Great Basin National Park in Nevada is one of the least-visited national parks, making it a perfect getaway for those seeking solitude and adventure. May is an excellent time to visit because the temperatures are pleasant, and snow begins to melt from the lower-elevation trails.

Best Activities in May

• Cave Tours: Explore the stunning Lehman Caves.
• Stargazing: Enjoy some of the darkest skies in the U.S.
• Hiking: Try the Bristlecone Pine Trail to see some of the oldest trees on Earth.

Entry Fee

• Free entry to the park
• Lehman Caves tours: $12 per adult, $6 per child
• Annual America the Beautiful Pass: $80 (covers all national parks)

Rules and Regulations

• Do not remove or damage natural features.
• Campfires are only allowed in designated areas.
• Pets are restricted to specific areas.
• Pack out all trash.

Best National Parks to visit May with Families

Winner: Yellowstone National Park
With abundant wildlife, geysers, and easy-to-access scenic spots, Yellowstone is ideal for families.

Best National Parks to visit May for Couples

Winner: Acadia National Park
Acadia’s coastal beauty and scenic hiking trails make it a romantic destination for couples.

Best National Parks to visit in May with Friends

Winner: Glacier National Park
For adventurous groups, Glacier’s stunning hikes and potential for wildlife encounters make it an unforgettable experience.

General Entry Fees & Annual Passes

Most national parks charge $30–$35 per vehicle for a seven-day pass. If you plan to visit multiple parks throughout the year, consider purchasing:

• America the Beautiful Pass: $80 (Grants access to all U.S. national parks for a year)

General Rules and Regulations for All National Parks

Regardless of which park you visit, follow these essential rules:

1. Stay on Marked Trails – Avoid damaging fragile ecosystems.
2. Respect Wildlife – Never approach or feed wild animals.
3. Leave No Trace – Pack out all trash and keep the parks clean.
4. Camp Only in Designated Areas – Follow fire safety guidelines.
5. Check for Reservations – Some parks require advanced permits for entry or specific activities.

Final Thoughts

May is an incredible time to explore Yellowstone, Glacier, Acadia, and Great Basin National Parks. Each offers unique landscapes, exciting activities, and unforgettable experiences. Whether you’re admiring geysers in Yellowstone, hiking Glacier’s scenic trails, enjoying Acadia’s coastal beauty, or stargazing in Great Basin, you’re sure to create lasting memories.