Southern Chile consists of a narrow mainland interspersed with many islands. Therefore it makes sense that there are lots of ferry's connecting islands and mainland in southern Chile. The Pack Track had been on a few of these ferry's but all had been relatively short, lasting a few hours at most. Navimag is a company that contracts ferry routes in southern Chile including a 3 night voyage from Puerto Natales to Puerto Montt. To ride this distance, depending on the route you take, can be around 1,800km with a mixture of good and bad roads. It's actually a really popular section of riding for motorcyclists travelling the west side of South America to Ushuaia because its relatively untouched still with stunning scenery and challenging gravel roads.