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 SUP Surfing O’ahu | A Week Of Exploring → Paddle Thailand’s Nong Thale Lake → 8 Mile Downwind SUP FOIL | Cross Training → Downwind Foiling Sydney →