The Swansea Valley (Welsh: Cwm Tawe), is one of the South Wales Valleys. It is the name given to the valley of the River Tawe area in South Wales.
It reaches southwest and south from the Brecon Beacons National Park down to the city of Swansea.
The area is divided between the City and County of Swansea, Neath Port Talbot County Borough, and Powys.
Craig-y-Nos Castle meaning; “Rock of the Night. A Victorian-Gothic country house in Wales. Built on parkland beside the River Tawe in the upper Swansea Valley, it is located on the southern edge of Fforest Fawr in Powys.
The former estate of opera singer Adelina Patti, part of the complex is now used as a boutique hotel, catering, conferencing and entertainment venue.
The castle grounds are surrounded by the Brecon Beacons National Park.