There are (at least) three towns in Argentina that have Welsh influence, which form a triangle with legs of maybe fifty clicks or so, very roughly. Trelew, Puerto Madryn, and Rawson. These are in the province of Chubút. Here you have many tall, green-eyed women. I was in Trelew for Mardi Gras in 2008 and it was quite interesting. I think this is one of the more liveable areas of the country. I do not believe that there remains much of a Welsh speaking community, though. Near Bariloche in Río Negro you have Colonia Suiza where they make cheese and that community has retained German to a fairly significant extent. I went to a restaurant there where you could pick out your own fish from the retaining pond, select what greens you wanted them to go pick for your salad, and so forth. Formosa has probably the highest average looks of any of the 19 provinces I have visited, which is good because it is spectacularly uninteresting otherwise. And there are NO fat chicks there.
And, to stay on topic, there are ATMs in all of these places.