Argentina is a largest country, so expect to cover large distances during your trip. The northern city to the southern are 4,000 km. Given its size, most itineraries in Argentina include domestic flights that take several hours. Public transport in large cities, especially Buenos Aires, is highly effective. Some areas, such as Patagonia, are slightly more limited in terms of public transport, renting a car and setting off on a road trip is also a great way to explore.
The SUBE card is a system to pay for all types of public transportation (bus, metrobus [a faster bus service], train and subway) in the Buenos Aires Metropolitan area and many urban locations around the country. You can get the card at subway or train stations, candy stores and even at lottery retailers. And in those same places you can recharge your card. It is very accessible and easy to use.
By train: railways are the cheapest form of transport in the country, and it also offers some of the best views of varied landscapes. Argentina’s rail network might not be as extensive but still connects a few cities and location in and around Buenos Aires such as Tucuman, Cordoba, Rosario, Bahia Blanca and Mar del Plata. However, the destinations are limited, and the train journey is time taking when compared to intercity buses. There are few fantastic tourist trains such as “La Trochita” in Patagonia, the Southern Fuegian Railway in Tierra del Fuego National Park and “Tren a las nubes” in Salta, operating at an enormous altitude of 4220 meters. However, this train is unreliable and often suspended, sometimes for weather conditions, sometimes for strikes and sometimes for seemingly no reason at all.
For more information about trains, you can check this website
By Bus: Argentina is served by dozens of bus companies offering inexpensive and relatively comfortable travel, especially on long-distance routes. Overnight options for many routes include semi-cama, or partly reclinable seats, and cama, which are fully reclinable.
Urban buses are known as “colectivos” and cover an extensive route around major cities. Buses are run by a number of different companies, so fares can vary. In some cities, bus fares are fixed to the entire city. Tickets and coupons are also available at kiosks around the cities. A color-coded system determines what regions of the country are served by which bus lines. Red, indicates the centre of the country (including Buenos Aires province), dark blue, the south, orange the north, green the northeast, light blue, the central Atlantic coast, and grey international destinations.
You must plan if travelling in the high season (mid-Dec to Feb) or around long weekends, especially if you are taking a long-distance bus from Buenos Aires or any other major city to a particularly popular holiday destination. In these cases, you should buy your ticket two to three days beforehand. For more information about routes, destinations and departures you can check these websites . For overnight routes check here. Normally when you use this kind of webs there are no commissions or extra fees. These two sites will allow you to compare prices and routes from different companies in Spanish and in English. Most individual bus company websites are only in Spanish.
By boat: many international cruise companies make Argentina, often combining it with itineraries that include Brazil, Uruguay, and Chile. Buenos Aires is the main destination. Your cruise line will likely organize shore excursions, but if you are traveling independently, be aware that the zone just outside the port of Buenos Aires is very dangerous and the site of many robberies of unsuspecting foreigners.
If you are traveling between Argentina and Uruguay, you will most likely be taking a boat. From Puerto Madero in Buenos Aires. This company offers boat connections from Puerto Madero to the Tigre islands. This is a stunning way to see the islands and the Rio de la Plata coastline of Buenos Aires. In Patagonia, most boat trips are designed purely for their scenic value, including ones that give access to the polar scenery of the Parque Nacional Los Glaciares and the alpine Parque Nacional Nahuel Huapi.
By road: renting a car is pretty simple as long as you are at least 21 years old and have a valid driver’s license, credit card and passport. Before you drive off, check that you have been given insurance, tax, and ownership papers, check carefully for dents and paintwork damage and get hold of a 24hr emergency telephone number.
You will not need a car if you are staying in Buenos Aires, but it can be a useful option for side trips and seeing remote areas of the country surrounding major cities. A car is particularly helpful if you are going to visit estancias, or gaucho resorts; staying in wineries near Mendoza; or traveling to certain areas of Patagonia. In many of these cases, 4 x 4 or more rugged vehicles might be recommended, as some roads in these areas are gravel or unpaved.