I’d love to be able to say that I chose to visit Cádiz for it’s spectacular sea views or the magical allure of Andalusia, but the simple truth is that I chose Cádiz because when I was looking at train tickets, I discovered that it was the furthest point to which I could travel from the Atocha station in Madrid, and that sounded like a pretty good deal to me.  The spectacular sea views and magical appeal came later when I actually arrived, happily.