Rapids are classified into six grades based on technical difficulty and potential danger:
Extremely long, violent rapids with large, unavoidable waves and significant hazards. White Water
Moderate, irregular waves that may be difficult to avoid and require precise maneuvering. Rapids are classified into six grades based on
Straightforward rapids with wide, clear channels and occasional maneuvering. violent rapids with large
Fast-moving water with small riffles and few obstructions.