Illinois Beach State Park

🌿 Trusted Guide to Illinois’ Last Natural Shoreline – Updated 2025

6.5 Miles of Lake Michigan’s Only Natural Shore in Illinois

In the city of Zion in Lake County, Illinois Beach State Park (officially Adeline Jay Geo-Karis Illinois Beach State Park) protects 4,160 acres along 6.5 miles of Lake Michigan’s only remaining natural beach ridge shoreline in Illinois. Split into North and South units, the park harbors sand dunes, wetlands, black oak savannas, and over 650 recorded plant species — including prickly pear cactus, an unexpected find this far north. The South Unit’s nature preserve is a National Natural Landmark (1980), protecting rare dune-and-swale habitats found nowhere else in the state.

Beach & Nature

• Sandy Lake Michigan beach: Swimming (no lifeguards) with views across the lake
• Dune ecosystem: Sand dunes, marshes, and rare plant communities
• 650+ plant species: Including wildflowers, orchids, and prickly pear cactus
• Nature Preserve: National Natural Landmark in South Unit — permit may be required

Trails & Camping

• Hiking trails: 2.2-mile loop (South Unit), 1.8-mile Camp Logan Trail (North Unit), and connecting bike trail
• 241 Class A campsites: Electric hookups, showers, and restrooms — reserve ahead for summer
• Illinois Beach Resort: Full-service lodge within the park for non-camping visitors
• Fishing: Both Lake Michigan surf casting and inland pond fishing

Practical Tips

• From Chicago (45 miles): Take I-94 North to IL-173 East, then Sheridan Road to the park
• Entry fee: Free (Illinois state parks are free)
• Reserve campsites early — the 241-site campground fills May through September
• Dogs are allowed on most trails but not in the Nature Preserve
• Lake Michigan water is cold even in summer — warmest temperatures in late July/August
• Combine with Chain O’Lakes State Park (30 miles west) for inland lake paddling

Written by

State Parks Team

Editorial Team

The America's State Parks Editorial Team has collectively explored 800+ state parks across all 50 states. Our park profiles are carefully researched using official state park data, verified visitor information, and first-hand observations from our writers and contributors. Each article is fact-checked against official sources and updated regularly to ensure accuracy. Our mission is to help every American discover the natural wonders in their own backyard.

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