The mesopotamia is surrounded by two big plentiful rivers: the Paraná and the Uruguay. It has, in the province of Misiones, rocky formations that break up the course of the rivers giving birth to falls, rapids and cascades. A spectacular example of this are the world famous Iguazu Falls, declared World Natural Patrimony of the Humanity by the UNESCO.
Moving southwards we find the littoral of the provinces of Entre Ríos and Corrientes, with several beaches, islands and suitable places for the practice of swimming and water sports.

In both subregions we find rich varied fauna, especially in the protected subtropical forest places in Misiones, and the most temperate woods and parks of Corrientes and Entre Ríos.

We can also enjoy the thermal fountains existing in many cities.