All the services you could want in this town. “La Gran Tortuga” is a hostel at number 34 of the main road. Wifi is included, and it was a clean if aged room.
NOTE: The new albergue of Xagoaza is not actually in O Barco, but rather 3.5km out of town to the North. If you wish to stay, contact Gloria at 639 921 679 for her to open up.
Two possible ways out of O Barco.
The most common and well-marked way: Leave O Barco via the main road which goes on for about 2km before arriving at a roundabout. At the roundabout, continue on straight (third turn if you were driving) and under the N-120 overpass. Along the way to Arcos, the impressive Pazo de Arnado is visible across the river.
The alternative on the south side of the river: In O Barco, make your way South to the river. On the eastern side of the village is a pedestrian footbridge that crosses the river. Turn Right at the end of the bridge and cross through a park with small pond. When that path comes to and end, turn sharply left and then sharply right again to stay on parallel to the river. When this path meets the road, turn Right. The road branches to the left, and between these two branches another trail begins. It is this trail that will be the way onward. You will skip Arcos and Vilamartin and instead pass through Arnade with it's impressive Pazo and Valencia do Sil. In Valencia, cross over the dam and turn left. You have now rejoined the camino.