Next we went into Glacier National Park to get up close to the glacier. It is neat when the glacier is calving. I took a movie on my cell phone, this is the first time I tried to do this, but I did capture it. The movie is about 4 min long but the calving close to the front of it. If you have the sound on you will hear the pop just before the chunk falls into the water. The phone did not pick it up but it sounds like thunder thus they call it blue thunder.