Llansteffan Castle

The castle stands on the west bank of the River Tywi estuary
Llansteffan Castle from the north
Castle seen from the seafront, as depicted in an engraving from 1811

Llansteffan Castle (Welsh: Castell Llansteffan) is a privately owned castle in Llansteffan, Carmarthenshire, Wales, overlooking the River Tywi estuary in Carmarthen Bay.