The Monastery of St. Kevin was founded in the 6th century as a place for seekers to find God in somewhat solitude. The large tower was the structure of the day and outer buildings made up the kitchen and the chapel. People wanted to be buried where Saints were buried and the cemetery is still in use today by the descendants of some of the old families. Nothing can be dug up or studied until the last descendant is buried and the cemetery is out of use. That may be a long time.
The chapel of St. Mary above and a view of the round tower below.
Looking at the round tower and St. Kevin's kitchen (also a chapel)
Everything from Celtic cross to simple headstone