On the Atlantic border, undoubtedly the most colorful area is the Valdes Peninsula, where there are colonies of birds, penguins, sea lions and walruses. It is also the annual meeting point of the "southern franca blue whale" (Eubalaena australis).
However, there are also colonies of sea lions, penguins and sea birds in other parts of this long coast and you can also find beaches ideal for resting and taking sea baths.
The northern beaches, such as Las Grutas (Rio Negro) with cliffs of up to 30 m high, are appropriate for swimming due to the pleasant temperature of the water.
Diving is very important in this area due to its crystal-clear waters. It may be practiced in several places, but the most important point is Puerto Madryn (Argentina's "diving capital") where you can also visit submarine parks showing sunken shipwrecks, varied sea fauna and other attractions.
The Bosques Petrificados Natural Monument (Petrified Forest Natural Monument), near Puerto Deseado (Santa Cruz), is an excellent alternative and allows you to look at the biggest fossil bed in Argentina with gigantic petrified araucarias.
Regarding the incredible samples of Patagonian Paleontology heritage, they are properly systematized at the Edigio Feruglio Museum in Trelew (Chubut).
Mining-tourism can be experimented in Sierra Grande, where you are allowed inside a mine equipped the necessary gear in order to live a unique experience.
The great number of lighthouses (over thirty) along the Patagonian coast, play also an important role in this beautiful area.
The most outstanding lighthouses are: the one in Rio Negro, near Viedma (Rio Negro), the one in Punta Delgada, near Puerto Deseado (Santa Cruz), the one in Cabo Blanco, in the southern end of San Jorge Gulf (Santa Cruz), and the one in Cabo Vírgenes, at the entrance of the Strait of Magellan (Tierra del Fuego).
Finally, the isle of Tierra del Fuego with Ushuaia, the end-of-the-world city, is a symbol in itself strengthened by the natural attractions which surround it: forests with sub-Antarctic flora and fauna species, cross-country ski-runs, Fagnano and Escondido lakes, and the mountainous isles in the Beagle Channel.
Trips in Patagonian waters:
Beagle Channel, Ushuaia
The southernmost city in the world is washed by a mythical sea which can be sailed aboard a catamaran. Those seeking more adventurous experiences, try sailing boats or even jet-skis.
Puerto Blest, from Bariloche
Sailing along the Blest arm of Lake Nahuel Huapi one reaches Puerto Blest harbor where it is possible to have lunch and walk up to the De los Cántaros Cascade.
Victoria Isle and "Arrayanes" Forest
Departing also from Bariloche, a short trip across Nahuel Huapi takes us toward the orange-colored tree forest and the magnificent island. It is also possible to visit this island from Villa La Angostura.
Lakes in Los Alerces National Park
Leaving from Esquel, one may visit the beautiful lakes in the Valdivian forest: Lake Futalaufquen, Verde Lagoon and Lake Menéndez as well as the Arrayanes river.
Lake Argentino, from El Calafate
This southern lake is the biggest in Argentina. The excursion is fantastic: sailing among ice-floes of the most incredible shapes and colors, and getting amazing views of various glaciers.