Grand Canyon Rafting on the Colorado River

Experience the Thrills and Beauty of Grand Canyon River Trips

Rafting the Colorado River through the Grand Canyon is the best-known whitewater rafting expedition in the world. For nearly 300 miles the river flows freely through a mile-deep gorge of ever-changing views and vistas, revealing the history of the earth in its multicolored layers of rock. The rapids are legendary, ranging from playful riffles to white knuckle thrills. Side canyon hiking and off-river exploration will take you to places of wonder, where you can frolic in waterfalls, swim in turquoise pools, stand amazed upon scenic overlooks, or relish the cooling shade of slot canyons and hidden grottoes.

Personal Service and Professional Leadership on Every Trip

As a family-owned outfitter, we maintain a hands-on approach to every trip we run. From the moment you call our office to the warmth and expertise of our guides on the river, you’ll immediately notice the difference. This close involvement allows us to personally select and know our guides, stay closely connected to daily operations, and ensure each trip reflects the high standards we expect. We’re committed to providing a personal, friendly experience every step of the way.

Expert River Guides Who Bring the Canyon to Life

Our guides work extremely hard, love what they do, and they are experts in their field. Most of them have worked for CRATE for over a decade and some much longer. They are not only highly skilled boatman, but also knowledgeable in the history, geology, and ecology of the Grand Canyon and Colorado River. This expertise allows CRATE guides to provide a rich, educational experience alongside the thrill of Grand Canyon whitewater rafting.

The Rapids of The Colorado River in Grand Canyon

The rapids of the Grand Canyon are dynamic features shaped by geology, hydrology, and human influence, forming mainly at the mouths of side canyons where flash floods deposit boulders and sediment into the Colorado River, creating debris fans that act like low-head dams and generate turbulent whitewater as the river drops steeply over them. The largest rapids often occur in the Inner Gorge, where erosion-resistant rocks such as Vishnu Schist and Zoroaster Granite steepen the river’s gradient, though major rapids like Lava Falls also form outside the Inner Gorge where large debris fans dominate the channel. Since the construction of Glen Canyon Dam, the river’s natural flood cycles have been replaced by regulated flows, typically around 10,000 cfs, which limit the river’s ability to flush debris downstream, making some rapids more technical at low flows and producing larger waves at higher flows near 20,000 cfs. Together, debris flows, canyon geology, and dam-controlled hydrology create an ever-changing set of rapids that range from gentle riffles to intense whitewater, rated on a unique Grand Canyon 1–10 scale that offers finer distinctions than the International Class I–VI system; while most rapids roughly correspond to Class III, extreme rapids such as Lava Falls and Crystal can reach 9 or 10 on the canyon scale and approach Class IV difficulty, underscoring the distinctive and evolving nature of whitewater in the Grand Canyon.