Class V: Cataract CanyonThese rapids are classified by all the same problems associated with Class IV rapids but with larger drops and they typically last a longer amount of time, testing your endurance.
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Cherry Creek—Upper Tuolumne, CaliforniaA whopping 15 Class V rapids punish paddlers from mid-summer to September, because the high flows of spring make Cherry Creek too dangerous. Be prepared for drops, undercurrents and lots of boulders on this tough and technical section.
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.
Grand Canyon rapids are rated on a 1-10 scale. Flat water is 1 while tough rapids like Lava Falls or Crystal can be rated 10 at certain water levels. A 10 rating in the canyon is roughly equivalent to a Class V in the standard river scale.
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.
Class VI: Extreme and Exploratory RapidsIf a river is classified as Class VI it is extremely dangerous. These runs have almost never been attempted and often exemplify the extremes of difficulty, unpredictability and danger. The consequences of errors are very severe and rescue may be impossible.
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.
Class V: Expert. Extremely long, obstructed, or very violent rapids which expose a paddler to added risk. Drops may contain large, unavoidable waves and holes or steep, congested chutes with complex, demanding routes.
Lava Falls is the most famous and most formidable rapid in Grand Canyon National Park. Fabled for its steep drops and highly technical rapid layout, Lava Falls is rated as a Class 10 rapid, the highest rating a rapid can receive under the Grand Canyon's older classification system.
This is why Bali island has so often been called a paradise island by visitors. The natural beauty of the lush rainforests and main rivers is truly as spectacular as the beaches and ocean. Rapids here are usually rated as class IV and are more challenging than on the Telaga Waja River.
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).
The 31.5-mile section of the river between Hells Canyon Dam and Upper Pittsburg Landing is designated as the Wild river section. Rapids vary from Class II to Class V.
Most of the rapids Hells Canyon are classified as a Class III and Class IV, which means you're in for a wild ride and you're definitely getting wet. The two most intense rapids are at the beginning of the trip. Both are Class IVs.
Havasu Canyon Rapid (3) follows immediately downstream. Mile 179.7 – Lava Falls Rapid (9) – Also known as Vulcan Rapid, is perhaps the most difficult, if short, run in the entire canyon.