The Portuguese Coastal Way enters Galicia through A Guarda, so we must cross the river Miño.
To take the Ferry in Caminha, you must go to the Ferry Station, you must just follow the Way, and it ends there.
The cost of the journy is around 1’5€, and it lasts aroun 15 minutes. The ferry arrives to A Pasaxe, Camposancos, in the southern side of the Tegra Mountain. A Guarda is on the other side of the mountain.
From A Pasaxe, you can follow the Way, that goes through Camposancos, or you can follow the sea path that goes around the mountain and alongside the sea. This route is a little bit longer (6’8 km), but it worth it. You will walk along a few beaches (O Miuño in the picture) and see the river mouth, between Spain and Portugal. The path to the town since the river mouth is called the Blue Path, that enters A Guarda just in the dock.