Have you ever wondered why a white water rafting trip can feel like a completely different adventure from one day to the next? The secret lies in a single number: the water level. At Mild to Wild, we know that every day on the river is a new experience, dictated by the ever-changing whims of Mother Nature. The thrill, the challenge, and the sheer fun of your trip all depend on the volume of water flowing—a measurement known as CFS, or cubic feet per second.
Understanding CFS is the key to choosing the perfect trip for your sense of adventure. A high CFS means big waves and continuous rapids, while a lower CFS can lead to a more technical, maneuver-filled ride. As a free-flowing river, the Salt River in Arizona is a testament to this natural variety. While we can provide a general guideline for when these levels occur, remember that we’re always at the mercy of snowpack and rainfall. The one thing we can guarantee is an unforgettable time.
The Salt River is an iconic western river, a true desert oasis that carves a dramatic canyon through the Arizona wilderness. Its wild, untamed nature is what makes it so special. While flows generally peak in mid-March, the exact timing and height are a glorious mystery. No matter the flow, the reward of time spent in this remote wilderness is always a sure bet.
- Under 275 CFS: The river becomes a technical workout at this level. The crew must work in unison, utilizing specialized techniques like prying and draw strokes to navigate the twisted and sliding channels. You might have to walk the raft over exposed shoals and cobble bars to get to the next drop, but the challenge is part of the fun. This is an awesome outdoor adventure in one of Arizona’s most amazing canyons.
- 275 – 400 CFS: At this level, the water exposes numerous rocks, making the navigation a true test of skill. Constricted channels and steep chutes require precise maneuvering to avoid getting stuck. While the pace between rapids slows down, it gives you a chance to truly soak in the towering walls of the canyon, marveling at the clear water as it winds its way through majestic granite, basalt, and sandstone.
- 400 – 600 CFS: Near the end of the season, the river can become quite technical. Class III rapids are still there, but you’ll need to work with your crew to push and bounce the boat to get through the constricted, twisting channels. Surfing opportunities abound at rapids like “Overboard,” and the chance of getting stuck is part of the fun. This level is perfect for those who appreciate the challenge of negotiating a more intricate waterway.
- 600 – 900 CFS: As the water level drops from mid-March to mid-May, the river begins to reveal its technical side. The rapids become more chute-like, requiring paddlers to work together with precision to avoid rocks and getting stuck. Rapids remain solid Class III, with fantastic opportunities to try surfing a wave in the warm water. This is an excellent time to appreciate the beautiful desert oasis and the challenge of a fast, splashy run.
- 900 – 1500 CFS: This is a common flow from March to early May. You’ll find plenty of Class III rapids on all trips, with multi-day adventures still enjoying some Class IV action. The pools between rapids are longer at this level, giving you more time to soak in the incredible scenery of the canyon. You’ll still get plenty of splashes and thrilling hits, but with a bit less intensity than at higher flows. For a more adventurous option at this level, ask about our Premium Boats!
- 1500 – 2500 CFS: From mid-March through early April, you’ll find an awesome balance of thrilling white water and a slightly decreased chance of capsizing. The one-day trip is packed with Class III and III+ action, while multi-day trips still hold exciting Class IV rapids in the lower gorges. The popular “Overboard” rapid becomes particularly exciting at this level, and you’ll enjoy a full day of soaker waves throughout the trip.
- 2500 – 4500 CFS: Typically occurring in mid-March during a big snow year, this level delivers exciting white water and a whole lot of action. You’ll get plenty of big, Class III wave trains and soaker waves that will drench everyone in the raft. On the one-day trip, two of the rapids become solid Class IVs. This is an awesome level for the rapids in White Rock Canyon and a guaranteed day of huge splashes and roller-coaster waves.
- 4500 – 15,000 CFS: This is a rare level, reserved for the most adventurous souls looking for a major adrenaline rush. The river transforms into a beast of huge, drenching waves and long sets of continuous, roaring rapids. At this level, several rapids become a true Class IV, and some even push the limits of IV+. This is not for the timid! You’ll find yourself battling numerous large holes capable of flipping rafts, and on day trips, you might even run the first seven miles twice because crossing Cibecue Creek is too challenging.
Ready to experience the legendary Salt River for yourself? Learn more about our Salt River trips and find the perfect adventure for your skill level!