Agdan is situated in Arniston which is a small seaside settlement in the Overberg region on the Cape South coast, close to Cape Agulhas, the southern-most tip of Africa. Prior to the shipwreck of the Arniston, it was known as Waenhuiskrans, an Afrikaans name meaning literally "Wagon house cliff", after a local sea cave large enough to park a wagon and a span of oxen in.

The seaside entrance to the Waenhuiskrans cave which is not always accessible from the sea. Use the crawl space on the other side of the promontory to get into the cave. The numerous rock pools are a source of endless fascination and joy for old and young alike.