Buenos Aires. With a population of 12 million Buenos Aires is an exiting and vibrant city. If you love tango, then Buenos Aires is the place to go. There are attractive offers of tango shows and tango lessons that target tourists in the city. But if you like dancing it, mixing with the local folks, the best places are not difficult to find in the Buenos Aires night. La Viruta, La Ideal, El Abrazo Tango Club are some of them that come easily to my mind. However, there are a lot more to do in Buenos Aires than dancing tango. Museums, theatres (in Spanish), fairs, polo matches, shopping or simply walking through the city are interesting ideas to try. And if you are travelling in a budgeting way, don’t worry, I have written a list of things to do in Buenos Aires for free that can help you to fully enjoy the city. I think that the minimum time devoted to Buenos Aires during a three week vacation should be 3 days, but spending an entire week probably would be better, especially if you are a city kind of girl or guy. Be aware that the rest of the attractions of Argentina are natural ones. Buenos Aires can be visited all year round.
The Perito Moreno Glacier: everyone that have read my posts know that I am crazy about the Perito Moreno. I discovered it many years ago during a bike trip and since that time I consider it to be the major landmark not only of Patagonia, but of Argentina. Spend an entire day at the walkways if you can, and complement it with a long navigation or with the big ice trek if you are fit enough. It will not disappoint you. Best time to go: from Nov to April. 2 days in Calafate are the minimum that you should spend there. Two or three additional days will be necessary if you plan to visit el Chalten too.
Iguazu Falls: the nature at its best. The falls make an impressive sight, and the surroundings permit an intense contact with nature to the adventurer within us. Best time to go is from April to Nov, in summer is a little hot but not so oppressive to miss them. 3 days minimum.
Salta: In Salta we find the old Argentina. The northwest part of the country is the one where the first Spanish settlers and the aboriginal inhabitants first mix, and keeps so far a historical flavour since that time. El tren de las nubes is a must and Cachi, Cafayate, and Quebrada de Humahuaca are worth to visit too. 3 days minimum. Best time to go is from April to October.
Peninsula Valdes: peninsula Valdes is the show of animal life. In the peninsula gather whales, sea lions, sea elephant, penguins, orcas, and a multitude of sea birds. 2 days is the minimum recommendable to spend there. Best time to go: from September to February.
These five places that I have recommended in this post are very far away one from the other. But all of them are worth visiting. I think that they can give you an almost complete picture of Argentina.