Illinois State Parks

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Illinois is a beautiful state, with many interesting natural features. Illinois State Parks include the multi-use Cave in Rock State Park, with its marina and rock formations, Giant City State Park, which has its own impressive rocks and lovely hiking trails and Argyle Lake State Park, a perfect place for anglers and picnickers.

Cave in Rock State Park:
Camping, hiking and boating from the marina are popular at this state park.

Giant City State Park:
The enormous rock formations at this park must be seen to be believed.

Argyle Lake State Park:
Boating and fishing in this scenic lake park is best in the fall when the leaves have turned.

Tunnel Hill State Park:
This long hiking and biking trail pass by and through the state’s wild places.