Another smaller, out-of-the-way cavern system that offers LOTS of opportunities for adventure are the Caverns of Sonora in Sonora, Texas. And in case you’re not a fan of the typical underground chill, the Caverns of Sonora are uniquely warm!

They offer a variety of tours, including an Underground Classroom and a family-friendly Discover Challenge tour. I’m embedding the video for the Discovery Challenge below, but please visit their website for an entire page of video field trip fun.