"Ape Cave" is the longest continuous lava tube in the continental United States.
Here is Kal'el learning more about the eatable and non-eatable plants.
Leif scouted ahead and decided it was a little too dangerous for a few kids and a pregnant lady.
We weren't prepared with enough warm clothing, light and equipment to travel the whole way.
Here are some more cool pictures of the cave:
To read more about Ape cave see this link: