Adeline Jay Geo-Karis Illinois Beach State Park

Beach, dunes and wetland habitat make it a substantial outdoor destination on the state’s northeastern coast.

Consult current state park alerts, maps and seasonal facility information before choosing an entrance or activity. The photograph shows the main beach during an earlier visit rather than today’s water quality or swimming conditions. Use designated public areas, protect sensitive dune vegetation and follow posted shoreline guidance. Camping and other reserved facilities have their own arrangements, and access can vary between different parts of the park.

Visitor details reviewed October 18, 2026. Check official visitor information for current access, admission, and operating arrangements. View on OpenStreetMap.

Image credit: Wrongdave at English Wikipedia / Wikimedia Commons. Original source. Public domain. Resized and converted to WebP; may be cropped for display.