Thunder River Adventures is your gateway to unforgettable river experiences in Colorado. Based on the Roaring Fork River in Aspen, we specialize in professionally guided whitewater rafting, scenic floats, inflatable kayaking, and stand-up paddleboarding on some of the most beautiful and sought-after waterways in the state. From crisp mountain air and rushing water to towering Rocky Mountain scenery, every trip delivers a true Colorado-style river adventure.

On the Roaring Fork River in Aspen, granite boulder gardens and the legendary Slaughterhouse Falls—home to some of the best whitewater rafting in the state—create unforgettable excitement, while calm, crystal-clear stretches are ideal for scenic floats and stand-up paddleboarding through a pristine nature preserve. For guests seeking a different style of whitewater, we also offer select adventures on another one of Colorado’s iconic rivers, known for its classic rafting sections and legendary rapids.

Whether you’re learning a new outdoor skill, planning a family-friendly float, or chasing adrenaline on iconic Western rivers, Thunder River Adventures offers guided river trips for all ages and ability levels. Choose your Aspen rafting adventure—or expand your experience to another one of Colorado’s iconic rivers,— and come play in our backyard.