If you’ve stepped outside recently into the convection oven that is weather in Columbus and immediately considered giving up on summer altogether, I’ve got good news.
There’s a magical place just 30 minutes from Columbus where the temperature never breaks 55 degrees. Ever.
It’s called Olentangy Caverns, and yes, it’s literally underground.
You can wander through ancient limestone tunnels that stay blissfully chilly while the rest of the city is baking in the heat. Carved by an underground river thousands of years ago, the caverns feel like stepping into another world—one that’s peaceful, quiet, and naturally air-conditioned.
The tour is self-guided, takes about 30 minutes, and is surprisingly accessible. The pathways wind through dramatic rock formations and narrow passageways, offering just the right amount of adventure without ever getting overwhelming. Perfect for families, casual explorers, and anyone desperate to escape the humidity.
But the caverns are only part of the story.
Above ground, Olentangy Caverns turns into a full-on summer day trip destination. You’ll find:
- Mini golf
- Gem mining
- A petting zoo (complete with goats and alpacas)
- A giant outdoor maze
- A climbing structure made from a decommissioned fire truck
- And even yoga and sound bath sessions inside the caverns (which honestly sounds like the calmest place on earth)
It’s got big summer camp energy—in the best possible way.
And while the caverns themselves are the main draw, the land above holds history too. In the early 1800s, the area was studied and documented for its archaeological significance. Artifacts and signs of long-ago Indigenous life have been found in and around the site, and while the on-site interpretation is minimal, it’s worth remembering that this land holds deeper stories than just geology.
Need to know:
- Located in Delaware, OH
- Open daily from 9:30 a.m. to 6 p.m. through October 31
- Cavern tickets start at $8.95, or grab an all-access pass for $24.99
- Wear sturdy shoes, bring a light jacket, and plan to stick around a while—there’s a lot to explore
Whether you’re looking to escape the heat, entertain out-of-town guests, or just try something different on a Saturday, Olentangy Caverns is a solid bet. It’s close, it’s unique, and yes—it’s really, really cool. For more info, you can check out their website at olentangycaverns.com.
