Fonsagrada is the first town of any serious size since crossing into Galicia, and while it may not be a postcard quality village it does provide for everything you might need, including a selection of restaurants to choose from. If you are dining out consider trying the pulpo (octopus), it is the market food of choice in Galicia and is served with heavy bread and a local white wine. In recent years the addition of three albergues here has caused the closure of the old Padrón albergue in the next town.
The camino between Padrón and O Cádavo is arguably the most difficult of the route, and possibly the reason for the nickname the leg wrecker. Allow for extra time, especially after a rain since many of the sections become thick with mud.
The sacred fountain (fons sacrata) that gives the town its name is located behind the Iglesia de Santa María de Fonsagrada (on the aptly named Rúa do Fonte), a chapel-sized church in the center of town. The fountain and its curative waters are part of numerous miraculous bits of lore.
The camino exits Fonsagrada along the main road, and shortly after follows a secondary road parallel to it, into Padrón. Beyond Padrón it follows through forested paths off of the road.