Activities The Great Outdoors Basic Whitewater Kayaking River Features Know How to Identify Whitewater River Features Share PINTEREST Email Print Mike Harrington/The Image Bank/Getty Images The Great Outdoors Paddling Hiking Climbing Skiing Snowboarding Surfing Fishing Sailing Scuba Diving & Snorkeling Learn More By George Sayour George Sayour is an American Canoe Association–certified kayak instructor. He regularly leads workshops on paddling basics, techniques, and safety. our editorial process George Sayour Updated January 02, 2018 Whitewater paddling is obviously an exciting yet dangerous activity. The main concerns lie in the water and the water features themselves. It is therefore crucial that the whitewater kayaker, canoeist, and rafter know not only the terminology for whitewater river features but also how to identify them as well as be able to communicate them to other whitewater paddlers. Here is a list of the most common river features and hazards that whitewater kayakers, canoeists, and rafters must know. Whitewater Classification Rapid Continuous Whitewater Pool Flatwater Wave Wave Train Hole or Recirculation Eddy Drop and Ledge Waterfall Line Very generically, a line in whitewater is the path that the paddler will want to take through any rapid, wave, hole, or other river feature.