Thank you for the Zambezi article by Christian Kallen Jan. 4. The graphic article and beautiful photography brought back to me my adventure on the Zambezi River last September. Nineteen of us went 2 1/2 months through Africa. We all decided to take the week down the Zambezi with Sobek Expeditions. Mike Speakes was our head guide. The raft I was in was the only one that flipped, on Rapid 18. I don't swim! But we were each given the finest life jacket to wear. No problem.