The Monasterio de San Salvador is not open for visitors, but the church occasionally is.
Celorio is well known for its enthusiastic festivals. There are three spread out during the months of July and August.
The first is in honor of the Virgen del Carmen and begins on the first Sunday after the 16th of July at the Iglesia de San Salvador; it involves a procession with the Virgen to the beach. One week before this there is the hoguera (bonfire), wherein the neighboring villages compete to erect the largest eucalyptus tree (chopped and hauled back to town) in the church square. The third is the día del bollu to celebrate the patron of the city San Salvador on the first Sunday of August; it puts the food in feast.
The route through Celorio is well marked, though if you wander off of it you may get turned around easily in the web of streets of this small village. If in doubt head towards the beach, which the camino passes on its way out of town along a coastal road.