How deep is the water?
River depths vary. Slow, calmer stretches of water tend to be those that are deeper. Faster, choppy water tends to be shallow, often 4 feet deep or less. Regardless of the depth, however, if you should find yourself overboard (this is rare, indeed) in fast moving water, the proper procedure is to float on your back, feet pointed downstream. Don’t attempt to stand until the water is less than 18 inches deep. When you reach calmer water, swim toward a guide or nearby raft, or swim to shore.