Garrett Martin and his team are almost halfway through their filming and backpacking adventure in Chile along the Greater Patagonia Trail. And what a journey it has been! In part three of Travel Tape's extended interview series with @UnboundedFilm, Garrett talks about being stuck in town as forest fires rage nearby; learning to pack raft frigid rivers and lakes; retracing steps as a branch trail proves utterly impassible (and filled with hornets and tarantulas, to boot); and about working with a slightly mad but completely dependable team.