Rick McCoy has spent more than eight years with the TX Department of Protective Services in Austin, TX, as a systems analyst and programmer. When he is not developing and refining the agency’s online networking capabilities, Rick McCoy enjoys staying active through whitewater rafting around the United States.
Whitewater rafting can be a thrilling, physically rewarding outdoor activity. However, individuals should familiarize themselves with the whitewater rapid classification system in order to minimize the likelihood of taking on a river beyond one’s skill set. As is the case with any rating system, evaluating the qualifications and characteristics of a specific river can be subjective. Similarly, rafters must appreciate the variables that can influence a river’s difficulty, such as bad weather or rising water levels.
The internationally recognized whitewater rapid classification system rates rivers on a scale of I through VI, with I representing a beginner’s level river and VI indicating a river that should only be attempted by the most highly experienced rafters. A class I river is a slow moving source of water that may feature a few small waves but little to no physical obstacles across the river’s path. A class II river moves faster and may require some maneuvering around obstructions, but is still a manageable challenge for rafters with some experience.
Class III and IV rivers move into the intermediate territory of rafting difficulty. These rivers present rafters with larger waves and quickly changing river geography. They also differentiate from lower level waterways in that rafters will often need to navigate narrow passes, many of which need to be scouted prior to entering the water.
Finally, class V and VI rivers are recognized as the world’s most challenging rivers. Not only do these rivers demand advanced rafting skills, but a high degree of physical endurance, as they cover more distance compared to lower ranked rivers. These rivers are also highlighted for their potential for physical danger. Class VI rivers are not considered commercially viable waterways and any team of expert rafters that attempts a class VI are willingly putting their lives at risk.
