Whitewater rafting is a thrilling way to experience the Grand Canyon, and whitewater rafting at Grand Canyon West Interior Whitewater Expeditions pictureInterior Whitewater Expeditions (IWE) celebrates 37 years of whitewater rafting on some of the most powerful and pristine rivers in the British Columbia Interior. IWE has also been awarded a prestigious place among the members of the Canadian Tourism Commission’s Signature Experiences Collection – once in a lifetime remarkable travel experiences in Canada. We are one of only two rafting companies in all of Canada to be accepted into the Signature Experiences Collection.