15 Best Caves to Explore in Arizona

Travel to Flagstaff to the well-known Coconino National Forest. For it is there you can explore the long lava tube known as the Lava River Cave. It was formed by a large volcanic eruption about 700,000 years ago.

If you want to cool off, the best time to visit is in the summer. The caves are, on average, only 40 degrees Fahrenheit and you might even spot a bit of ice. Even in the summer, you should take thick clothing, because the cave and its connected caverns can actually drop to under 30 degrees.

You’ll have to do your homework before entering though since it is a “self-guided trip.” Another reason to visit in the warmer months is that the roads can be shut down in the winter. In fact, in the winter the more athletic visitors can actually ski into this cave when there’s enough snow. So check on road conditions if you’re interested. Admission is free.

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