After 268 days in his kayak, 1643 hours of paddling and a journey of almost 6,800 miles, 65-year-old Mark Fuhrmann has completed his epic “Reverse the Bad” charity expedition across Canada and the United States.In doing so, he becomes the first person to solo kayak the ‘Greater Loop’ circuit, beginning (and ending) in Halifax, Nova Scotia, and traversing the Great Lakes, the Illinois, the Mississippi, the Tennessee and Tombigbee Rivers, before hitting the Gulf of Mexico and heading up the Atlantic Coast.A smiling…