Portland's Premier Tour, Adventure & Ski Shuttle Company, Since 2001. Sea to Summit provides informative, fun and exciting experiences throughout Oregon and the Pacific Northwest. We offer many activities including white water rafting trips, Oregon wine tours, Portland brewery tours, Oregon sightseeing and nature tours, surfing lessons, hiking trips, ski shuttles and more. Sea to Summit is Oregon's original and longest running tour and adventure company, Created, owned and operated by native Portland, Oregonian's, since 2001.... Come and experience the difference!