“You haven’t been to Arniston if you haven’t been inside the enormous sea cave which is accessible only at low tide and gives the town its Afrikaans name. Waenhuiskrans is supposedly wide enough to turn an ox wagon in. Not that anyone’s tried!
It may be huge, but you’d never find the cave if you didn’t know what you were looking for. Once you’re in, and your eyes have adjusted to the gloom, you’ll be struck by the perfect oval archway to the sea. And the ferocity of the waves beyond it, their pounding and crashing magnified by the cave’s echoes.