Join Date: Dec 2003
Location: Brooklyn, NY, United States
Programs: AA, BA, UA, Spirit, Delta, PC Plat, SPG Gold, HHonors Diamond, Club Carlson Gold, Marriott Gold
Posts: 1,735
Iguassu if you haven't been.
Rio would be fun for around NYE but you won't get there on miles (I don't think).
Florianapolis if you could get there, if not, Porto Allegro and take a bus.
Or just take it easy and take a ferry to Uruguay to visit Punta del Este. I believe it's about 3 hrs from Montevideo, but there are many other nice coastal cities closer to MV.