plaza houssay or some shit like that is like one subway stop from dt and its pretty sick, ledges, manny pads, 2 big 3's....then theres puerto madero which is like the nicest area of buenos aires, it's kinda like dt but the part closest to the water, everything is really nice there and theres a whole bunch of sick spots, including this plaza thing thats not a skate plaza but might as well be. everything is so perfect, concrete is unreal smooth, whole bunch of ledges, small sets, rails, even a big hubba.
thats about all the spots i got to check out on my short time there. if you're looking for a cheap place to stay i recommend the ritz hotel which is really a hostel, super cheap and the people that work there are jamming.
and january eh, prepare for the hottest fuckin weather you'll ever experience, shit is like 40 degrees (celsius) on a cold day.