Oracle of Delphi

In 2017 on our way to Egypt we visited the ancient temples of Delphi in Greece. Although the land and temple ruins were powerful, I felt that most of what we could see at the temple sites were the ruins Roman or at best late Greek constructions. Surely the oracle was older than this, and there must be some sign of the original place where she presided?

I heard tell there was a cave 8km walk into the mountains that was connected to the temples. It was sacred to Pan and the Nymphs, and once a year there would be a procession from the temples to the cave. Online stories warned that driving there might be difficult but I decided to try it anyway in our rental car. Luckily it was far easier than rumoured. I knew immediately upon entering the cave that this was it, unchanged and in use for thousands of years!