Yeah it's pretty good to learn the language of any foreign country while being there. It's not that hard to just power through a book or two and pick up pronunciation by making friends with people who barely speak English. If you REALLY want to accelerate it get into a relationship with someone who barely speaks your language, actually - I have a lot of fun dating girls who are trying to learn English but my Spanish is good enough to give me some better chances starting out

Response to edit: Yeah the international schools here are really good, I actually have a friend teaching at a German language one for kids which is well renowned so there's even options outside of English immersion