TV Gareth Edwards’ Great Welsh Adventure - Season 1 Episode 1 : Episode 1 Gareth Edwards’ Great Welsh Adventure - Season 1 Episode 1 : Episode 1 /10 by 0 users Gareth Edwards and wife Maureen cause chaos when they take charge of a narrowboat on the Llangollen Canal. The scenery is breathtaking but things don’t entirely go to plan. Details Casts Posters Images Title Gareth Edwards’ Great Welsh Adventure - Season 1 Episode 1 : Episode 1 Alternative Titles First Air Date 2019-10-18 Last Air Date 2019-10-18 Number of Episodes 1 Number of Seasons 1 Genres Documentary, Networks BBC One, Casts Gareth Edwards, Maureen Edwards Plot Keywords , Self - Presenter Gareth Edwards Self - Presenter Maureen Edwards Episodes List Gareth Edwards’ Great Welsh Adventure Season 1 :Episode 1 Episode 1 Episode 1 2019-10-18 Gareth Edwards and his wife Maureen cause chaos as they explore stunning Welsh canals.