Mudcatter Lanfair (Bron) had a summer gig last year performing on the dayboats from Welshpool on the canal there, don't know if she's doing it again this year. (Too busy with sheepskins and trips to "foreign" parts lie Yorkshire, I expect!).
RtS ("did" the canal du Midi myself once with family, but I was the only entertainment. I was so bad, even I jumped ashore)