Boina River

Boina River () is a small river in the south west Algarve, Portugal is a tributary of the Arade River which it has a conflux at the Boina Estuary north of the mouth of the Arade at the town of Portimão.
Description.
The river Boina runs for a distance of from its headwater sources which are a number of small streams and brooks rising from springs across the Serra de Monchique. The rivers confluence is with the River Arade forming the western arm of the Arade estuary and is known as the Boina estuary. The head of the estuary is near the village of "Arge".