Buenos Aires, Argentina is a Celiac friendly city. There's a high awareness of celiac disease. Everybody knows what "being a celiac" is like.
Ice creams in Buenos Aires are the best I ever had in the world, so creamy and fresh. The best icecream stores are "Freddo," "Munchi," and "Persico," which are located all over the city. The three of them offer Gluten-Free ice cream, there's a special list with different flavours to choose from.