20:45Four ThoughtA Boat of One's OwnBBC Radio 4 Duration: 15 minutes Wed 6th Jan 2016, 20:45 on BBC Radio 4 FMAvailable for over a yearListen nowMichelle Madsen makes the case for life on Britain's rivers and canals. Show more GenresFactualFactualArts, Culture & the MediaBrandFour Thought Source: BBC Online