About 2km south of Kells (signposted from Kells Priory car park) there's a 29m-high round tower, an ancient church and a Celtic high cross, said to mark the grave of a 9th-century Irish high king, Niall Caille. He apparently drowned in the Kings River at Callan some time in the 840s while attempting to save a servant, and his body washed up near Kells. His final resting place lies beyond the church grounds because he wasn't a Christian.
