The Augustinian Abbey at Cong was founded in the early 12th century by Turlough O’Connor (High King of Ireland). It was built on the site of a 6th century church associated with St. Feichín. It features some very fine examples of stone carvings throughout. The Abbey is considered to be one of the finest examples of early architecture in Ireland. The Abbey served many purposes including a hospital for the sick, shelter for the poor and starving as well as being a place of learning for thousands of scholars.
On the abbey grounds is a delightful 15th/16th century monks fishing house built over the River Cong. In the floor was a trapdoor so that the monks could fish in relative comfort.

Image credits:
 by Shadowgate /  by Conal Gallagher / 
By Trever Miller http://smugbastard.ca/ (Own work) [ or ],
Stephen Duffy / Failte Ireland