8 Stunning Swimming Holes Hiding in Illinois

Explore these secret natural wonders that most locals don't even know exist.

Apr. 11, 2026 at 3:48am

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A highly stylized, geometric landscape illustration in the Art Deco style, featuring towering cliffs, cascading waterfalls, and serene pools of turquoise water, capturing the grandeur and natural beauty of Illinois' hidden swimming holes.These hidden natural swimming holes across Illinois offer a refreshing escape from the summer heat, showcasing the state's diverse landscapes in all their serene glory.Libertyville Today

Discover eight incredible swimming holes across Illinois that offer cool, clear waters, dramatic rock formations, and lush natural surroundings. From the Kinkaid Lake Spillway's cascading waterfalls to the turquoise springs of Bell Smith Springs, these hidden gems provide the perfect escape from the summer heat.

Why it matters

While Illinois may not be known for its natural swimming spots, these eight locations prove the state is hiding some truly stunning and refreshing oases. Exploring these lesser-known destinations allows visitors to experience the natural beauty of Illinois beyond the typical tourist attractions.

The details

The Kinkaid Lake Spillway features a series of waterfalls that cascade over smooth limestone, creating natural pools perfect for swimming. The Volo Bog State Natural Area offers a sandy beach and clear, lifeguard-monitored lake, while Fish Lake Beach has a nostalgic summer camp vibe with volleyball courts and kayak rentals. Further south, Bork Falls in the Shawnee National Forest plunges 30 feet into an emerald pool surrounded by dramatic rock formations. The Illinois River also provides swimming opportunities, with a campground offering easy access to the sandy shores. In northwest Illinois, Lake Le-Aqua-Na features a designated swimming area with a diving platform, and Bell Smith Springs in the Shawnee boasts impossibly blue, spring-fed pools beneath a canopy of ferns and wildflowers.

  • These swimming holes are open and accessible during the warm summer months, typically from Memorial Day through Labor Day.
  • The Kinkaid Lake Spillway, Volo Bog, and Fish Lake Beach are busiest on weekends, while weekdays offer a more peaceful experience.
  • Bell Smith Springs and Bork Falls, located in the Shawnee National Forest, can be visited year-round, though swimming is best during the summer.

The players

Kinkaid Lake Spillway

A series of waterfalls and natural pools located in the Shawnee National Forest.

Volo Bog State Natural Area

A 1,500-acre nature preserve in northern Illinois featuring a sandy beach and clear lake.

Fish Lake Beach

A family-friendly camping resort in northern Illinois with a designated swimming area and beach.

Bork Falls

A 30-foot waterfall that cascades into a deep, emerald pool in the Shawnee National Forest.

Illinois River

A major river that runs through Illinois, offering swimming and kayaking opportunities at a campground along its shores.

Lake Le-Aqua-Na

A 40-acre lake in northwest Illinois with a designated swimming beach and diving platform.

Bell Smith Springs

A series of crystal-clear, spring-fed pools in the Shawnee National Forest, surrounded by dramatic rock formations.

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What they’re saying

“These swimming holes feel like hidden gems that most people don't even know exist in Illinois. It's like discovering your own private oasis.”

— Carrie B

“I've lived in Illinois my whole life and had no idea these incredible natural wonders were right in my backyard. Exploring them has given me a whole new appreciation for the state's beauty.”

— Cindy Gill

What’s next

As summer approaches, visitors should check the websites or social media pages of these swimming hole locations for updates on hours, amenities, and any potential closures or capacity limits.

The takeaway

Illinois may not be the first state that comes to mind for natural swimming spots, but these eight hidden gems prove the Prairie State has some truly stunning and refreshing oases waiting to be discovered. From cascading waterfalls to crystal-clear springs, these swimming holes offer a chance to escape the crowds and immerse yourself in the state's beautiful, untamed landscapes.