puerto iguTrivia - Where is 'Thatcher Day' celebrated on January 11th
Puerto Iguazu to Buenos Aires then Uruguay.
Plataforma 10 is a good website for checking out bus services and times within South America
Many buses were full so it may be adviseable to book a ticket ahead of time.
Puerto Iguazu to the Falls - At the bus station they sell return tickets for A$10 but you can just pay on the bus at A$4 each way.
Posadas to Parana - Crucero Del Sur bus, A$148 left a little late at 8.30pm. Movie in English with Spanish subtitles helped to pass the time. After dropping people off in Corrienties we got a midnight feast. Hot chicken in sauce with chips. Bread roll and a cake. Few people boarded so we had 2 seats each for the rest of the journey. Very cold all night even after asking for the air-con to be reduced. Lots of delays as the road surface is bad. Should have arrived 7.30am but were 3 hours late.
Parana to Tortuguitas (same bus went on to Buenos Aires) - San Jose bus, A$96 had much less leg room than the other 2. We got off at Torguguitas but the bus continued to BA and the fare would have been the same.
Buenos Aires city transport - Good underground network. Tickets A$1.10, no discount for bulk. TAKE CARE when you enter some of the stations as there is a different entrance for each direction.
Buenos Aires to Colonia del Sacramento, Uruguay. At the end of the red tube line you can either walk or take a taxi, A$7, to the ferry terminal. We just turned up at the ticket office and asked for the cheapest that day to Colonia. The "Seacat" at 11.30am came in at A$146. Whilst waiting there is free wi-fi in the terminal.
Answer - The Falkland Islands