Delta del Tigre

What is the Tigre Delta ? Picture the Ebro delta (Spain) but the size of Belgium. Hundreds of rivers and islands where there are no bridges or streets. Life is by boat. In the inhabited part (4000 inhabitants) you will see grocery boats, bar boats, floating hospitals, and kids kayaking to school. Further you will discover rain forest along rivers such as the Paraná de las Palmas which is 1500m wide. Picture streams where you cannot see the sky through the bamboo and lianas closed by aquatic plants in the middle of the jungle and canals only 3m wide. 
How to go to Tigre on your own : Take the train from Retiro (Mitre line), 1 hour, 17 pesos return