Water is a vital element for the survival of all living beings on Planet Earth. Rivers are, therefore, real arteries for life. From the top of the mountains where the rivers begin to run, to their final destination, we will get to know the animals and landscapes that cross the heart of Wild Portugal. The Deer stag that struggles to keep his harem, the Springtime ritual of the frogs and the dancing of the Grebes are just a few of them.