I had never really knew this park existed before about a week ago when I learned it was on our way to Sun Valley Idaho where our family reunion was going on. I was actually really shocked to learn that a. astronauts use it as a training ground for the actual moon and b. that there was that much volcanic activity in Idaho. When I think of volcanoes Yellowstone and Hawaii are what immediately pop into my head. I learned that the a hot spot had traveled across Idaho all the way to Yellowstone where it resides today. Driving into the park is like entering another world. If you drive the loop (which I highly recommend) you can see much of the park in about a half hour or so. I would have loved to go on some hikes but unfortunately we were just passing through so there wasn’t much time.