St. Ishmaels Tump
This is what remains of a Norman Motte and Bailey castle.
St. Ishmaels Tump (reconstruction)
It was a minor medieval stronghold defending the peninsula under the supervision of Walwyn's Castle. Wooden palisades surrounded the top of the fort above the bank and ditch system. The bailey may have been to the south between the motte and a mere that has been enlarged to form an irrigation lake. Traces of a dam suggest controlled flooding was an additional defence.
