Carrigafoyle Castle, formerly known as Caisleán Charraig an Phoill, is a fine example of a 15th century castle. It sits on the edge of the Shannon estuary on the part which was originally an island.
It is five storeys high with vaults over the second and fourth storey.
Weddings can be held there too.
There are a few of these 15th century castles around the area. This one belongs to Ballylongford.