Overview

Isle Royale is Lake Superior's wilderness island—a 45-mile backcountry corridor accessible only by seaplane or ferry (3.5-6 hours). With just 28,806 visitors in 2024 (congestion index 1/10), you'll have the boreal forest, moose sightings, and rocky shoreline largely to yourself. The trade-off? No cars, no cell service, and you're committed once you arrive—ferries don't run daily. This is backpacking-first terrain: 165 miles of trails, 36 lakeside campgrounds, and the 40-mile Greenstone Ridge traverse. If you want a day trip national park, look elsewhere.

Trail Tip

Book the Voyageur II ferry from Grand Portage in June for water taxi service—it drops backpackers at trailheads along the north shore, letting you hike one-way instead of doubling back. Reserve 6+ months ahead; June offers 16-hour daylight and fewer bugs than July's peak mosquito season.

When to Go

The sweet spot is July — good weather meets manageable crowds. Peak season hits in August.

Warmest month with highs in the low 70s. Moose wade in shallow bays to escape heat and flies.

Monthly crowd levels — click a month for details

J
F
M
A
M
J
J
A
S
O
N
D
Low Moderate High Peak

Seasonal Closures

Entire island: Generally closes mid-October through mid-April due to Lake Superior winter conditions

How Busy Is It?

How Isle Royale compares to all 62 national parks

Busier than 0% of national parks

QuietBusy
Below Average

More crowded trails than 2% of parks

QuietBusy
Below Average

Higher campsite pressure than 2% of parks

EasyTough
Below Average
175 Visitors / Trail Mile
37 Campsite Pressure

Notable Trails

Isle Royale has more trail mileage than 74% of national parks, with 165 miles across 65 maintained trails.

The difficulty split leans moderate to strenuous — only 15% of trails are rated easy.

Easy 15% Moderate 54% Strenuous 31%
A person with a backpack hikes along a beaver dam near a beaver pond surrounded by forest.

Minong Section 4: Hike from North Desor to Windigo

Moderate
13 mi
Two people with backpacks hike along a ridge top trail

Feldtmann Loop Section 2: Hike from Feldtmann Lake to Siskiwit Bay

Moderate
10.3 mi
A person hikes along a trail on a ridge top. Trees cover the rolling landscape.

Feldtmann Loop Section 1: Hike from Windigo to Feldtmann Lake

Moderate
8.5 mi
A person stands on a rocky beach next to a lake with a forest in the background.

Hike the Huginnin Loop

easy
8 mi ·4-8 hours hrs
View all 32 trails
Trail Tip

Start early — Isle Royale's most popular trailheads fill up by mid-morning in peak season.

Camping

36 campgrounds with 244 total sites. About 100% are first-come, first-served.

Aerial View of Washington Harbor and Beaver Island.

Beaver Island Campground First-Come

3 sites 0 ·Seasonal
Aerial view of Belle Isle and surrounding waterways.

Belle Isle Campground First-Come

7 sites 0 ·Seasonal
Birch Island Campground shelter visible across water through tress with a blue sky overhead.

Birch Island Campground First-Come

2 sites 0 ·Seasonal
Aerial view of West Caribou Island surrounded by the blue waters of Lake Superior.

Caribou Island Campground First-Come

3 sites 0 ·Seasonal
View all 36 campgrounds

Top Activities

Isle Royale excels at 9 of 17 activity types — here are the standouts rated 7/10 or higher.

Backpacking

10/10

Premier backcountry destination with 36 campgrounds and 165 miles of trails

Hiking

9/10

Over 165 miles of trails ranging from day hikes to multi-day backpacking routes

Photography

9/10

Exceptional opportunities for wildlife, landscape, and Lake Superior photography

Kayaking Canoeing

8/10

Excellent lake and river paddling with interior lakes and coastal paddling opportunities

Fishing

8/10

Lake trout, brook trout, and walleye fishing in streams and interior lakes

Wildlife Viewing

8/10

Moose, wolves, beaver, foxes, and Lake Superior bald eagles

Bird Watching

8/10

Over 130 bird species including bald eagles, loons, and warblers

Stargazing

8/10

Remote island location offers excellent dark skies away from light pollution

Ranger Programs

7/10

Ranger-led programs at Rock Harbor and Windigo during summer season

Who It's For

Experienced Hikers 10/10 Adventure Seekers 10/10 Photographers 9/10 Solo Travelers 8/10

Planning Your Trip

Getting There

Nearest city: Marquette, MI (75 mi). Fly into CMX.

In-Park Services

No gas in park · Lodging available · Cell: none

Gateway Town

Houghton, MI — moderate amenities

Featured In ?Rankings based on data-driven scoring across all 62 national parks.

#2 Least Crowded National Parks #3 Hidden Gem National Parks #1 Best National Parks for Camping #2 Best National Parks for Backpacking #4 Best National Parks for Experienced Hikers #5 Best National Parks for Adventure Seekers

Stories

8 Uncrowded Parks With World-Class Hiking Eight parks where world-class trails and genuine solitude are the default, not the exception 10 Great Trails in Parks Most People Skip Ten trails in overlooked parks where solitude and wilderness character matter more than guardrails and crowds 8 Parks for Wildlife Without the Crowds Eight parks where world-class wildlife encounters come without the crowds—and why April is the season to visit The 8 Most Underrated National Parks Eight national parks that see fewer visitors in a year than Yosemite gets in a weekend, from Arctic sand dunes to coral reefs 8 Best National Parks for Backpacking Eight national parks where backpacking means something more than a long day hike—from Alaska's trackless tundra to Utah's slickrock canyons 8 National Parks With the Highest Trail Density Eight parks where trail miles outnumber the crowds, from Alaskan wilderness to tropical islands you've never heard of 8 National Parks on the Water Eight national parks where water defines the landscape, timed for April's weather windows and thinner crowds

Gateway Cities

Minneapolis, MN 387 mi / 7h drive

Compare Isle Royale

See how Isle Royale stacks up against other national parks — crowds, trails, and more.

Compare Isle Royale

Frequently Asked Questions

When is the best time to visit Isle Royale National Park?

The best month to visit Isle Royale is July, based on a balance of weather, crowds, and accessibility. Peak visitation is in August. The park has 3 comfortable months for visiting.

How crowded is Isle Royale National Park?

Isle Royale is relatively uncrowded, with a congestion index of 1/10. The park receives 28,806 visitors annually across 893 square miles.

How many trails does Isle Royale National Park have?

Isle Royale has 165 miles of trails across 10 easy, 35 moderate, and 20 strenuous routes. Popular trails include Minong Ridge Trail, Tobin Harbor Trail, Mount Franklin Trail.

Can you camp at Isle Royale National Park?

Yes, Isle Royale has 36 campgrounds with 244 total sites. Some sites are available first-come, first-served.

Is Isle Royale National Park open year-round?

Isle Royale has seasonal closures. Some roads, trails, and facilities close during winter months. Check NPS.gov for current conditions before visiting.

Nearby Parks

Voyageurs National Park 187 mi away
Indiana Dunes National Park 448 mi away
Cuyahoga Valley National Park 587 mi away