How to Prepare & What to Pack
for a Rafting Trip in Hells Canyon

For beginners, it’s advisable to start with Class I to Class II rapids. Class I rapids are the easiest, characterized by small waves and minimal obstacles, making them ideal for novices. Class II rapids present more challenges, including rocks and medium-sized waves, but they still offer a manageable experience for those new to rafting. These classes provide a safe introduction to the sport, allowing beginners to learn basic paddling techniques and how to navigate through the water. If you’re going to take a river trip, it’s always recommended to have an experienced guide, especially for those who are new to rafting. If you are going with a licensed outfitter, the best rapid classifications for a beginner may be a bit higher (depending on your physical conditioning and ‘thrill-level” sought). Rapids can reach Class III or even Class IV, which are great for adventurous adult beginners in good physical condition.

Not only were the first commercial river rafting trips in the United States launched in Idaho, but Idaho also has the most river sections to go rafting on! No other state can claim as many recreational river miles as Idaho. The American Whitewater Affiliation counts over 3,100 whitewater river miles in the state.

Families enjoy fun excursions on rivers such as the Main Salmon, Lower Salmon, Main Payette, North Fork of the Payette, Moyie and St. Joe rivers. Sightseers like quiet, flat water floats on waterways such as the Clearwater and Boise rivers and the Snake River in the Morley Nelson Snake River Birds of Prey National Conservation Area. Whitewater seekers gravitate toward the Snake River (which runs through Hells Canyon and southern Idaho) along with the Middle Fork of the Salmon, South Fork of the Payette, Lochsa, Selway, Bruneau and Jarbidge rivers.

While knowing how to swim can be beneficial, it’s not a strict requirement for participating in a guided rafting trip, especially on lower-class rapids (Class I and II). Rafting companies provide personal floatation devices and safety instructions to all participants. Guides are trained in the skills of their craft and work to provide an exciting ride while keeping everyone in the boat. However, for higher-class rapids (Class III and above), some degree of swimming ability is advisable due to the increased likelihood of falling into the water. At the end of the day, whitewater rafting is not a theme park ride, which is what makes it so amazing. Moreover, if you are going on an Idaho river trip without a guide, the importance of being able to swim confidently in turbulent water is heightened.

The physical demands of whitewater rafting vary based on the rapid class, the specific river and what watercraft you are in. Lower-class rapids (Class I and II) generally require less physical exertion, making them suitable for most fitness levels. As the rapid class increases, the physical demands also rise. Paddling through Class III and above rapids requires good physical conditioning, strength and endurance. 

Moreover, the physical demands of a whitewater trip in Idaho also depend to some degree upon the watercraft one is in. For instance, paddle rafts and individual inflatable kayaks require participants to provide propulsion for the craft itself, which increases the physical demands, whereas riding in an ‘oared raft’ does not require the participant to paddle or otherwise contribute physically to moving the raft. 

In general, participants should be prepared for the physical challenges and consult with their physicians (and rafting guide or company if on a guided trip) if they have any health concerns.

The best time for whitewater rafting in Idaho is typically from late spring to early fall, with the peak season being June through August. This period offers warmer weather and generally favorable water levels stemming from snowmelt in the mountains. The exact timing can vary depending on the river and the snowpack from the preceding winter. Early in the season, the water tends to be higher and more vigorous, while later in the season, it’s generally lower and more relaxed. It’s always a good idea to check with local outfitters for current conditions and recommendations.