On a hot day in Flagstaff, visit the Lava Cave. Dress warm, as the temperature is constant 42° year around. Bring flashlights and
batteries, there is not light below ground. The cave's entrance is not easy to find, you'll have to follow the fire roads into the
Coconino National Forest. And once you get there, all you will see is a marker and a hole
in the ground. But have faith and crawl though the hole, it will open into a fascinating
underworld adventure.
www.flagstaff.com/lava-tubes