Not to take anything away from Luke Hopkins he is a great paddler but that flow looks really low. It looks like he is jumpin off the rock into the water. Maybe its just the angle. Remember when kayaks were that long and if you were cartwheeling in a hole it's cause you were gettin your ass handed to you. I wonder where SUP could go? I can see people now on these little short boards doing kick flips, shove it's and 720's off water falls. Imagine a whitewater SUP skate style park with rails and ramps. That would be sweet. Its only a matter of time.