Bats, Cavemen, and Lava Tubes

Charcoal Cave 2

One of the coolest spots we’ve rigged yet, I think. This spot is the mouth of Charcoal Cave #1, which is part of the Arnold Cave System near Bend, Oregon. These caves are lava tubes formed from flowing molten rock around 80,000 years ago when Lava Top Butte erupted. They are called “ice caves,” because they have seasonal and permanent …