Published on September 28th, 2017 | by Matt Dumoulin GRANDEST OF GRAND – T’ashii SUP on the Grand Canyon of the Colorado! Tags: colorado, grand canyon Watch the latest SUP TV Videos Buy Sup World Mag Submit your video Related Posts Common Waters, a film by Rig To Flip Productions → Glenwood Springs Sup Surfing → A River SUP Journey → Colorado River SUP →