Craig-y-Nos Castle stands in the Brecon Beacons National Park Park in the Upper Swansea Valley in South Wales, uk. It has been transformed into a quality hotel with accommodation and reception facilities for weddings and conferences. With its stunning location and the carefully preserved ambiance of a Welsh Castle Craig-y-Nos offers visitors a unique experience, whether it be just enjoying an overnight stay, or as a guest at a major function. Live entertainment and banqueting facilities are available to complete the occasion. Breakfast is served 8. 30am to 10.