Fura Dos Araiolos

The waters of Fura dos Araiolos belong to the maze of channels and islands west of Marajó, at the mouth of the Amazon. Narrow tidal waterways called furos carry part of the river's flow south toward the Pará estuary. Their muddy waters wind between low, forested banks and islands, while the greater part of the Amazon continues north of Marajó toward the Atlantic. The tides reach far into this vast river mouth.