I recently had the opportunity to go fly-fishing on the McCloud River in Northern California. In order to reach the best fishing holes, I had to wade through some treacherous places where the water was flowing so fast, it was impossible for me to see where I was stepping. The river was lined with mossy boulders that were uneven and slippery. I often found myself not knowing which way to go in order to avoid being swept away by the current.
