Tuesday the 11th of March 2003- Day 21. Did a walking tour tour covered the Barrio de San Telmo district. Excellent and I would highly recommend it. The company are called Eternautas. Led by a historians from BA university, the price was 9 P (2.6 EURO) for 3 hours. Fredricko, an economist educated in Switzeraland and now has three part…