RIVER ARADE is a river located in the region of the Algarve, southern Portugal. The mouth of the river empties into the Atlantic between the city of Portimão and the freguesia of Ferragudo. From the time of the Moors up until the 19th century, the Arade was navigable up to as far as Silves about 12 km), where an important port used to exist, especially for the cork trade. Nowadays only small boats go that far.