| Riverboarding - New Boardsport - Surf The River Riverboarding is a new extreme sport where you ride a small surfboard/skimboard on a river going upstream at speeds of up to 30mph. How do you ride upstream on a river? Do you use a boat? A car? NO ! Riverboards are propelled upstream by a bungee system. The bungee system is a 20 foot section of rub... Tags: Riverboarding Surfing Action new Crazy Summer Extreme By: trigirl |