Found out recently my mother couldn't speak a word of English when she moved to London with family as a child. Held her back a lot at school apparently (and unsurprisingly). She was from South Wales too where Welsh isn't even that widely spoken even today where there's been a bit of a renaissance of Welsh speaking across the country and is taught as standard at school. She was pretty rural but is kinda strange to think that even so (relatifvely) recently there were parts of Wales which really were completely their own country with English not being spoken at all.
I've heard of Bala (and Barmouth) but couldn't point to 'em on a map. My Welsh geography is atrocious
I won't name the place I was thinking of that sits in a permacloud but it is widely-known across at least a big chunk of Wales for it's unfeasibly Welsh climate cos everyone I've come across seems to have heard of it and know its reputation. I live in a rather famously historic bit of Wales but also tiny so try not to be overly overly specific too often. Small towns and all that.