Take a trip down the Colorado River through the Grand Canyon and it’s impossible to notice a majority of the river isn’t rapids, but instead long calm sections intermixed with short bursts of absolute pandemonium. The reason the river is not just one long continuous rapid is that the Colorado River drops more elevation in certain sections than others, and in these sections the riverbed is typically filled with boulders, deep trenches and other obstacles. One way to tell you are approaching a rapid is to watch the current. Typically water will backup before a large rapid and the current becomes eerily non-existent. When you see this you know you’re in for a good time ahead.
