The last active one i know about was near pensarn but thats gone to the ground so all i can say is none that i,m aware of
Ita all about numbers, there just aren't enough active swingers in the n wales area to make such a venture financially viable
There is a N Wales Munch on June 10th (
with plans for more in the future but as of yet its a case of "walk before you run"
Its an on-going venture(non profit) that with local support could be a monthly event we will have to wait and see