Okay Johnjo
When you get there ask at the office if there's a venue that would welcome impromptu music workshops. Then put an advert in the Wailer for later in the week for all tenor banjo and mandolin players of all levels to meet up. You run the workshop. You don't have to be a big star to run a workshop. Call it a 'session' rather than a workshop. If you're wanting to learn there's a good chance you can learn from the others who'll turn up. I've run 'Squeezarounds' for mainly Anglos at Whitby and these are usually well attended.