A new pedestrian path in Alhandra has replaced the camino proper, but some arrows and signs remain along the N10. These should be ignored in favor of the river path.
To get there turn right off the N10 and head into town. The path is easy enough to find at the end of town, and it follows the water to Vila Franca de Xira. Blue and Yellow arrows indicate the way.
The pedestrian path keeps along the Rio Tejo into Vila Franca de Xira. The bright yellow bull ring tells you that you have arrived. Unless you need to enter the town, keep along the path. Otherwise, yellow arrows at the bull ring will guide you into and then back out of town to rejoin the path.