Virtually impassable rapids that are rarely attempted due to severe danger. A Brief History
Straightforward rapids with wide, clear channels and occasional maneuvering. White Water
Moderate, irregular waves that may be difficult to avoid and require precise maneuvering. Virtually impassable rapids that are rarely attempted due
Extremely long, violent rapids with large, unavoidable waves and significant hazards. clear channels and occasional maneuvering. Moderate
Fast-moving water with small riffles and few obstructions.