Illinois Caverns State Park

Drapery and flowstone in Chimney Dome (Figure provided by A. Frierdich)
Illinois Caverns State Park is home to one of the few publicly accessible caves in Illinois, offering guided cave tours, scenic picnic areas, and unique geological features. The park preserves rare cave ecosystems and provides opportunities for adventure and exploration in a beautiful rural setting.
Free
Visiting with Dogs
Dogs allowed on trails, leashed at all times; not permitted inside caverns. Owners must clean up after pets.
Visitor Tips & Reviews
What Visitors Say
Visitors love exploring the unique, self-guided cave system, cool underground streams, and natural formations, making Illinois Caverns a thrilling and memorable adventure for families and groups.
Tips from Visitors
- Wear sturdy shoes for uneven, slippery cave floors.
- Bring a flashlight or headlamp for dark areas.
- Check for seasonal closures before visiting.
- Dress in layers; cave temperature is cool year-round.
- No pets allowed inside the caverns.
- Pack out all trash to keep the park clean.
Amenities
Nearby Attractions
Explore these attractions near Illinois Caverns State Park:
- Salt Lick Point Land and Water ReserveA scenic reserve offering hiking trails with panoramic views of the Mississippi River bluffs and diverse wildlife.10 miles away
- Fort de Chartres State Historic SiteA reconstructed 18th-century French fort with historical reenactments and museum exhibits.18 miles away
- Pierre Menard Home State Historic SiteHistoric home of Illinois' first lieutenant governor, showcasing early 19th-century architecture and local history.21 miles away
Things to Do at Illinois Caverns State Park
Camping at Illinois Caverns State Park
No camping at Illinois Caverns; try nearby Randolph County or Turkey Bluffs for overnight stays.
Hiking Trails
Illinois Caverns State Park offers a unique hiking experience with its scenic trails leading to the entrance of the caverns. Hikers enjoy peaceful woodlands, wildflowers, and opportunities to spot local wildlife. The trails are generally easy to moderate, making them suitable for families and casual hikers. Visitors often highlight the cool, refreshing air near the cave and the park’s quiet, less-crowded atmosphere.
Illinois Caverns Main Trail
ModerateA scenic loop trail that explores the woodlands and karst landscape surrounding the caverns entrance.
Cave Entrance Overlook Trail
EasyA short trail leading to an overlook with views of the Illinois Caverns entrance and surrounding forest.
Karst Nature Trail
EasyAn interpretive trail highlighting unique geological features and native plant life of the karst terrain.
Sinkhole Loop Trail
ModerateA loop trail passing several sinkholes and offering opportunities for wildlife observation.
Directions
From Waterloo, take Route 156 west, turn left onto G Road, and follow signs for Illinois Caverns State Park. The entrance is about 6 miles southwest of Waterloo.
Contact & Info
Frequently Asked Questions
Is Illinois Caverns State Park open to the public?
Yes, Illinois Caverns State Park is open seasonally, typically from April through October. Check the official website or call ahead for current hours and conditions.
Do I need a permit or reservation to visit the caverns?
No permit or reservation is required for individual visitors, but groups of 25 or more should call ahead. All visitors must sign in at the office before entering the cave.
What should I bring when exploring the caverns?
Bring sturdy boots, a helmet, and at least three sources of light per person. The cave is wet, muddy, and dark, so dress appropriately and be prepared for slippery conditions.
Are guided tours available at Illinois Caverns?
No guided tours are offered. The caverns are self-guided, and visitors explore at their own risk. Staff provide safety information and maps at the entrance.
Is the cave suitable for children and beginners?
The cave can be challenging due to slippery, uneven terrain and low ceilings. It is recommended for older children and those comfortable with rugged conditions. Supervise children closely.
Are there facilities like restrooms or picnic areas at the park?
Yes, the park has restrooms, picnic tables, and a shelter near the parking lot. There are no facilities inside the cave itself.
