Swimming Holes in Illinois

Illinois has 4 documented swimming holes — river pools, waterfall plunge pools, and natural spring-fed sites on public or accessible land. Water temperatures and access conditions vary by season. Always scout before swimming, check for current advisories, and never swim alone in remote sites.

Always check current conditions before visiting — water levels, algae advisories, and access roads change seasonally. Never swim alone in remote sites. Tell someone your plans. Explore all swimming holes on the Trek4Free map →