State Guide
Explore Illinois Outdoors
Illinois offers 623 trails, 142 parks, and 1205 campgrounds worth planning a trip around. The trail mix runs 369 easy, 217 moderate, 31 difficult, and 5 expert-rated, so the state holds something for casual walkers and seasoned alpinists alike. Routes range from under a mile to 33 miles, with the toughest climbs gaining 14203 feet. Public lands worth knowing here include New Philadelphia National Historic Site, Pullman National Historical Park, and Starved Rock State Park. Among the trails hikers return to: Jane Addams Trail, Illinois Prairie Path, and LaSalle SRCM 71-23.
Plan a day hike
Shortlist routes by difficulty, length, and elevation.
Find a weekend basecamp
Compare park areas and access to trails.
Book a campsite
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Campgrounds in Illinois
Easy-to-compare options for tent, RV, and cabin stays.
Across The Street(ATS) RV & Tent Campground
Illinois
Adeline Jay-Geo Karis Illinois Beach State Park
Zion
Allison Lake Storey
Galesburg
American Legion Freedom Farm Campground
Deer Creek
Andalusia Slough
Taylor Ridge
Anderson Lake Conservation Area Campground
Illinois
Anderson Lake State Conservation Area
Astoria
Anderson's Campground
Illinois
Apple River Canyon
Apple River
Apple River Canyon State Park
Apple River
Archway RV Park
Mount Vernon
Arcola Camper Stop
Arcola
More Popular Trails
Strong options people open most often when researching Illinois.
Abandoned Observatory Trail
Oakland, Illinois
Airstrip and Brunner Loop
Dundee, Illinois
Allerton Park Trail
Monticello, Illinois
Almond Marsh Forest Preserve Loop
Libertyville, Illinois
Start Planning Illinois in 10 Minutes
Use this page as your launch point, then dive deeper with focused lists and details. We index 926 verified outdoor options across the state.
Explore Illinois by activity
Pick how you want to play. Each link pulls the state's destinations for that sport.