The city of Porto Alegre, which is the capital of Rio Grande do Sul, lies on the eastern shore of the Guaíba River, and the city of Guaíba lies opposite Porto Alegre on the western shore.
It is territory is inside the Guaíba basin and has an area of almost 800 km2, consisted 32 municipalities.
Guaíba |
At Porto Alegre, near the Atlantic coast, the Jacuí transforms into a shallow estuary, known as the Guaíba River, and flows into the Patos Lagoon.