Drumlane Abbey was an important site associated with St. Aidan or Maedhóg. The round tower and medieval church are the remaining structures still existing today. The round tower dates back to the 11th or 12th century -  look for the carvings of birds on the external wall.

The church that previously stood on site was replaced by a medieval building and features a number of interesting stone heads, one above the door in the west wall and another three on the external face of the east window. 

Near the church there are a series of earthworks, probably the remains of the 12th century Augustinian Priory.

According to local legend, it is said that the bell from the original church can be heard ringing, every few years, from the bottom of the Drumlane Lake.

Drumlane acted as the burial place for the O’Reilly’s – the local Gaelic Lords – and the remains of the tomb niches date back to the late medieval period.