Published on August 10th, 2017 | by Matt Dumoulin SUP River Surfing 101 The basics of river surfing explained! When do you start? Watch the latest SUP TV Videos Buy Sup World Mag Submit your video Related Posts Project Ocean Therapy SUP21km Fundraiser Event → The Paddle Sports Show Presents: The Paddle Sports Film Festival → How your top arm affects your paddle stroke → Palm Equipment | Glide | PFD | Product Spotlight →