Hydrography
The Paraguay River borders the entire department; the rivers Pilcomayo, San Carlos, Siete Puntas, Negro, Verde, Montelindo, Aguaray Guazú and Confuso also flow through this territory. To the south there is the Patiño Swamp.
The Tinfunqué National Park is a major tourist attraction; it has an area of 280,000 hectares.
In Presidente Hayes floods are frequent because of the overflow of the rivers, but just in Villa Hayes city, the land in other parts of the department is higher.
None of the rivers that part from Paraguay River are navigable for big ships.
Read more about this topic: Presidente Hayes Department