Originally Posted by
tuchop
I'd go to Mendoza if you're okay with your son trying some amazing reds. Best option is probably LAN (or AR), since you only have 2 days. There's a nice PH over there, and lots of places to visit. If you won't be coming back to Argentina in quite some time, then do it. Otherwise, if you know you'll be back.. I'd suggest you stay in Buenos Aires and get to know it well. There's lots of things to do in here!
I would second this recommendation about Mendoza. This past May I visited nine wineries in 3 days - with a designated driver (Miguel Sanz). It was the highlight of the trip and I had great time. The PH was very nice and quite comfortable. I used LAN for my flights between Mendoza and Buenos Aires.