I dno't know of anything on Anglesey but maybe there is still something happening in Beaumaris either in the Buckley Arms or the Bull. The folk club used to move between the 2 venues. I know John who ran it had packed in but something in the back of my mind says he was interested in starting again.

I am out of touch but off the Island, Bangor is the nearest venue. To the best of my knowledge, the Friday night Irish session is in the Nelson and I think that the Tap and Spile still has a Monday night Welsh session.

Other than that, the nearest venues I can think of would be the Mount in Llanwnda on a Thursday (assuming it is still going) and the Conwy Folk club on a Monday.

Jon