Vale do Almargem (Almargem Valley) stretches northwards from the N125 highway to where it meets the A22 motorway. This part of the valley is easily traversed on lanes and tracks close to the stream. Good riverside vegetation and patches of traditional farmland and orchards. The stream is tidal as far as the bridge - Ponte do Almargem - and higher up there are attractive seasonal pools. Worthy of hotspot status.