Visit Dundalk, the beautiful, Irish county town on the banks of the Castletown River. Richard Brown June 30, 2022 Reviews Leave a Comment Midway between Belfast and Dublin is the beautiful Irish county town of Dundalk, situated on the banks of the mighty Castletown River, it lies close to the border with Northern Ireland. Engulfed in history and with the motto (in the Continue Reading Visit Dundalk, the beautiful, Irish county town on the banks of the Castletown River.