Near the castle is a holy well dedicated to the Holy Cross, which has many recorded names (Tobar na Croiche Naoimh, Croghneva, Tobar na Croise Naomhtha, Tobernacrobaneede etc.). The well has a little stone vault over it, with a Gothic-type arch and a cross on top. It was thought that performing stations at the well would help with problems with the eyes. In the early 1840s the votive offerings were reported to include human skulls. At least until that period the well was a destination for pilgrims.
