Entering Moreira, turn Right at the cemetery.
The camino will take a right-left-right a short distance on, and the arrows are painted low on the curb. Whether you follow them, or you miss them, you will arrive at the main road. Turn Right there. A Pingo Doce and a Lidl tell you that you are on the correct road.
From here it is a straight road to the Zona Industrial of Maia. Turn Left when you get there.