Not surprised he was pulled out of the kayaking, but fails to get underground from 24mins & finally manages at 31:
http://www.bbc.co.uk/iplayer/episode/b08jns7w/down-the-mighty-river-with-steve-backshall-series-1-episode-1
Mike
http://www.bbc.co.uk/iplayer/episode/b08jns7w/down-the-mighty-river-with-steve-backshall-series-1-episode-1
Mike