Through the café,
and down a narrow passage (more loos – rather nicer than those in the carpark) you
enter the ticket office and small shop. Through the shop there is a spiral
stone stair, leading both up and down. I chose to go up first.
You can continue
to climb up onto the battlements and see over the courtyard and the ruins of
the remainder of the castle. If you suffer from vertigo, this is just about
doable, but I didn't linger!