Fethard's main concentration of medieval remains (some of which have been incorporated into later buildings) are just south of the church at the end of Watergate St. Beside Castle Inn are the ruins of several fortified 17th-century tower houses. Just under the archway to the river bank and Watergate Bridge is a fine sheila-na-gig (a sexually explicit medieval depiction of a woman) embedded in the wall to your left. You can stroll along the river bank, provided the resident geese are feeling friendly. From here, the backs of the Abbey St houses, although much added to and knocked about in places, once again display the pleasing irregularities of typical medieval building style.

East along Abbey St is the 14th-century Augustinian friary, now a Catholic church, with medieval stained glass and another in-your-face sheila-na-gig in its east wall.