Class 1- easy levelThis is the level that represents river waters that flow over minimal obstructions. There is minimal risk for the rafter. This would be suitable for a float-trip with no whitewater.
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These rapids are often best saved for those who have rafted before, but that doesn't necessarily rule out the first-time adventure-seekers. If you're in great shape and ready for a physical and mental challenge, you may be ready for Class IV rapids rafting trip on your first river expedition.
While most people can raft Class 4 rapids for their first time, there are several requirements. The minimum age to raft Class 4 rivers, depending on the river and company, is 12-14 years old. Many Class 4s recommend that you are in good physical condition, on the adventurous side, and know how to swim.
Whirlpool Rapids Gorge—Niagara River, New YorkThe Niagara Gorge is a deadly section of exploratory rapids. As the water travels through, it reaches about 30 mph, creating the Class 6 Whirlpool Rapids, some of the most extreme in the entire world.
Class IV Rapids - Whitewater with Obstacles and More Technical Skills » Larger waves, narrow passages, and multiple obstacles to avoid requiring precise maneuvering to avoid upset.
Rapid classifications range from Class I to Class VI, with Classes I and II most suitable for white water rafting beginners. Class I is the calmest, with no significant obstacles or waves. Class II gives you rapids with regular waves, along with wide channels and clear passages.
The Grand Canyon stretch of the Colorado River often uses a different rating system. The Class 1-10 system that is used in the Grand Canyon roughly parallels Classes I-V on the International Scale of River Difficulty (ISRD).
Class VI: Extreme and Exploratory RapidsThe consequences of errors are very severe and rescue may be impossible. Only teams of rapids' experts should attempt these rapids at favorable water levels, after close personal inspection and taking all precautions.
Feel the thrill of being at the river's edge! White Water Walk offers a first-hand lesson in the raw power and peril of the Niagara River's Class 6 whitewater rapids, some of the wildest in North America.
The Yellowstone River is classified as Class II-III rapids from Yellowstone National Park to Paradise Valley (the first 18 miles of legally navigable whitewater on the Yellowstone River).
Upper Tuolumne River (Cherry Creek), CaliforniaCherry Creek is the gold standard for Class V and is the hardest section of commercially rafted whitewater in the United States. Rapids like Mushroom (V), Toadstool (V), and Lewis's Leap (V) challenge even the most experienced river guides.
Located near North Carolina's southern boundary, the Green River (a French Broad tributary) is 60 miles long. It's highly regarded for whitewater sports, with great runs for novices (Class II-III) and experienced rafters (Class V).
The section of the New River from Hinton to Thurmond offers challenging Class I, II, and III rapids suitable for intermediate whitewater paddlers, and consists primarily of long pools and moderate rapids.