Spanish is the main language spoken in Bariloche. Some people also speak the native Mapudungun language. Lots of tourists from all over the world visit Bariloche, so you might hear other languages as well. This weekend I heard people speaking English, Portuguese, French, and Hebrew!
The currency of Argentina is the Argentine peso. With the current official exchange rate (which is changing all of the time!), 220 pesos = 1 US dollar.
A bottle of water from a kiosko (corner store) costs 200-300 Argentine pesos. That’s equal to about 1 US dollar.
Bariloche is known for its amazing chocolate. There are many shops where you can buy chocolate bars, truffles, and chocolate desserts of all sorts. I love ordering sipping chocolate because it is often chilly in Bariloche and this is a great way to warm up!