Mountain Stream and Lake in the Absaroka-Beartooth mountains. Drift snorkeling can roughly be described as snorkeling in a river or a fast current, and is like watching fish float by the window of an underwater train. Observing wild mountain trout swimming and feeding - while swimming and floating in their medium (water) is a exciting and exhilarating experience. In early afternoon, we hiked to a beautifully clear mountain stream in Montana. The sound of rushing water, flow