One of the "round towers" used as a refuge from the Vikings; The monks would allegedly hide at the top, pull the ladder up behind them, and throw a tribute down to the invaders. (Although I later learned that it was just as likely that the invaders were local chieftans as Vikings.)
More shots of the monastary.
Here's a shot of Scott and Oswald.
This is the oldest part of the monastary, dating back I believe to the 11th century.
A small baptismal font.
Another shot of the valley.
This lake was used in the film "Excaliber" - it's the lake from which Arthur recieved the sword from the Lady.