by what means does mccandless travel into mexico? where does he nearly die?

Chris sneaks through the border with Mexico. Once there, though, the river splits up into lots of small and confusing canals, and he has trouble finding his way. He takes a canoe and eventually he comes upon some duck hunters who speak English, who tell him there is no waterway to the sea, but who offer to tow his canoe to the ocean for him. Upon reaching his destination, he slows down his pace and takes his time camping and paddling along the coast. On January 11, 1991, he is almost carried out to sea in a bad storm, and after managing to survive decides to abandon the canoe and return back north.