This walk takes in beautiful, almost totally unspoilt places along the coast. In some areas the rocks are yellow marl, in other spots they are clusters of red marl. As a whole, in combination with the blue and green of the sea, it is extremely fascinating scenery. At times, the waves softly lap the coloured cliffs, other times they violently lash against them until they are submerged; then once more they rise in a slow inexorable cycle. Rocky sections alternate with small sandy coves where streams run into the sea, dragging with them a pile of round, finely polished stones.

The Lower Ebro coastline provides a natural environment ideal for fishing. There is a wide submarine coastal shelf, perfect for breeding fish. The temperature and the salinity of the waters vary, depending on whether they come from the sea in the north or from the currents of the River Ebro. There are plentiful substances necessary for the formation of plankton, a source of food for the fish.

The most popular form of fishing is bou or drag fishing. Formerly, two boats, parella del bou, sailing close to each other, used to drag two long nets known as orneig or bou. The nets were joined together at one end in a funnel shape and a basket was placed at this point to collect the trapped fish. Nowadays, as powerful boat engines have been developed only one is needed to drag the net along.

Technology has greatly increased the size of the catch by using modern fleets, and even more so when compared to the small sailing boats of the first pioneers. Nowadays, the challenge is related to sustainability, meaning, fishing in such a way that the quality of the waters is preserved; the very thing that attracted the forefathers of today's fishermen to come to this point on the coast.