| Boina River | |
| Pushpin Map: | Portugal topographic |
| Pushpin Map Caption: | Location of the confluence (Boina estuary) in Portugal |
| Subdivision Type1: | Country |
| Subdivision Name1: | Portugal |
| Subdivision Type3: | Region |
| Subdivision Name3: | Algarve |
| Subdivision Type4: | District |
| Subdivision Name4: | Faro |
| Subdivision Type5: | Municipality |
| Subdivision Name5: | Silves |
| Source1 Location: | Serra de Monchique, Algarve |
| Source1 Coordinates: | 37.1537°N -8.2654°W |
| Source Confluence Location: | Boina estuary |
| Source Confluence Coordinates: | 37.1707°N 8.5304°W |
| Mouth: | Boina estuary, south west coast of the Algarve into the Atlantic at Portimão via the Arade River |
The Boina River (pronounced as /pt/) is a small river in the south west Algarve, Portugal. It is a tributary[1] of the Arade River which it has a conflux at the Boina Estuary 4.2miles north of the mouth of the Arade at the town of Portimão.[2] [3] [4]
The Boina River runs for a distance of 30km (20miles) 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 Arade River 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.