The Upper Zambezi River is the playground of hippo, shimmering home of crocodiles and the watering hole of buffalo and elephant – drifting though secretive channels and enjoying the ever-so-slight turbulence of the more placid rapids above Kandahar Island. You might be fortunate enough to spot a Marshall Eagle, witness a Tiger Fish jump or catch a glimpse of a clawless otter playing in the shadows by the banks.