Turgalicia has created a 4 days route of the Ribeira Sacra region to give visitors an idea of what there is to see in this region of Galicia. This self guided route can offer visits to many monasteries and even a boat trip on the Sil reservoir.
You can find more information on this route, like a longer description, an interactive map, a more detailed description of day 1, day 2, day 3 and day 4.
If you are looking for a version of this guide that you can print out, have a look at this printable version here.
If anyone wants to see inside some of these churches then there are route every summer weekend. Contact the local tourism offices and they will tell you the details