Playing the dumb tourist card...
We wanted to take the tourist train (we had taken it yesterday to Tigre) for one stop, but found it cost $4.00 each no matter how far we went (the regular train costs about $.30...)...so we got on without a ticket, and pretended we thought it was the regular train...Very bad, I know, but Bill´s knees and my feet were sore and there were no buses or taxis... we just went one stop...