I’ve had a real fondness for Llansteffan Castle, near Carmarthen. Used to holiday down there, and I’d spend hours wandering around the castle, or just sitting on the sea-ward wall; it’s so low in one point you can sit on it resting your feet on the ground outside. Great view across the Taff and the Tywi, across to Laugharne, Dylan Thomas’s Boat House, and the furthest end of Pendine Sands. The other side of the Taff there are live firing ranges, amazing noise from A-10 Warthogs using their rotary cannon.