Optional: sighting of Tonina Overa (Patagonian Dolphin) We start from the city of Puerto Madryn looking for passengers by their accommodation, heading south taking National Route No. 3 until we reach the city of Rawson (capital of Chubut province). A few kilometers away we will find the port of Rawson, where the waters of the Chubut River meet with the sea and next to it, is located the beach resort town Playa Union, located on the open sea and part of Bahía Engaño. Here we have the option to venture into the unforgettable experience of sailing these waters in conjunction with the sighting of Toninas Overas, popularly known as Patagonian Dolphin. Sailing is done in semi-rigid boats looking for the encounter with these dolphins super friendly and active, coastal habits and who like to ride ocean waves and follow the boats. They are usually observed in groups of 2 to 10 specimens.