Whitewater Rafting and Kayaking - Chiang Mai , Thailand - Siamrivers.com

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River Grade Chart
Siam River Adventures - Chiang Mai
River Grade Chart

 Grade 1 - Easy

Fast moving water, ripples and small waves. Few obstructions, all obvious.
Easily rescued.

 Grade 2 - Novice
Straight forward rapids with wide clear channels evident without scouting. Rocks and medium sized waves easily missed by trained paddlers.
Easily rescued.

 Grade 3 - Intermediate

Rapids with moderate and irregular waves. Strong eddies and powerful currents, particularly on large volume rivers. Good boat control is required in tight passages and around ledges. Scouting is advisable. Rescue is possible.

 Grade 4 - Advanced

Intense powerful but predictable rapids. May feature large unavoidable waves and holes or constricted passages demanding fast maneuvering under pressure. Scouting is necessary first time.
Difficult rescue may be possible.

 Grade 5 - Expert

Extremely long, obstructed or violent rapids which expose a paddler to above average danger. Drops may contain large unavoidable waves and holes. Rapids may continue for long distances between pools, requiring a level of fitness. Scouting is essential but difficult.
Difficult and painful rescue may be possible.

skull  Grade 6 - Extreme skull
These runs exemplify extremes of difficulty and danger. For teams of experts only, at favorable water levels and after close study and taking all precautions. NO RESCUE POSSIBLE!




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