Covey Baack shows us how to navigate Class 4 rapids on his unique 6 Raft Stack. If you’ve ever gone white water rafting on a river with lots of rapids then you know how difficult and dangerous it can be. I was sure this adventure was going to end badly for him but he managed to navigate the whitewater like a pro. If you want to see a cool look at some whitewater rafting in New Zealand watch Rafting Tutea Falls.