Outside Saint Père there are medicinal springs. The Celts worshipped here the goddess Sulis, the Romans Minerva. The Celtic sanctuary and the Roman bathhouse have been excavated.
The spring water, slightly radioactive and containing iodine, is still considered curative.
In the woods to the east lies the well-preserved medieval monastery complex of Fontenay, a highlight in this field.
The abbey church, the monastery, the saw hall, the carp ponds: everything looks as if the medieval monks had left it there, but could return any time soon.