Llansteffan Castle is situated high above the Towy estuary, and an especially good view can be seen from the Carmarthen train.
A Norman castle established after 1100, and it was insecure for generations. The de Camville lords gradually rebuilt it in stone but lost it to Llywelyn the Great in 1215 and Llywelyn the Last in 1257. The castle was neglected after 1309 and fell to Owain Glyndwr in 1403 and 1405-6, but the gatehouse was refitted at least for Jasper Tudor after his nephew Henry gained the throne in 1485. It is the breathtaking site that makes the ascent worthwhile. At the top the earliest castle was roughly walled with a square gatehouse of around 1200, and a round tower, this reduced to foundations.
The castle is at the top of a steep hill that is reached by a long uneven path, not suitable for wheelchairs.