About 10km before Porto we were robbed on the camino by 2 men on the roman road stretch, calzada romana, as named in John Brierley's guide book. A photo of the exact place is shown in his guide book. The place is in the forest called Serra de Canelas on mapswithme. If you see 2 men sitting on the embankment at the start of this road, GO BACK, don't attempt to pass unless in a group. Be vigilante in this area. The police are aware of the situation.