For some years I have been trying unsuccessfully to find out more about a trip that Orson Welles is said to have taken on a barge on the River Shannon. Now I see that a chap in Wiltshire wants to make a film that, according to the synopsis, includes this incident:
First, though, he takes a leisurely barge trip on The River Shannon and meditates on nature and the beauty of the countryside.
There is more about the project here.
Irish waterways history 