Not your average trip, from 55 min, the approach being the greatest challenge from 49 min:
http://www.bbc.co.uk/iplayer/episode/b0953ydn/without-limits-vietnam-series-1-episode-1
Mike
http://www.bbc.co.uk/iplayer/episode/b0953ydn/without-limits-vietnam-series-1-episode-1
Mike