Beside Fern Pit, on the Newquay side of the Gannel opposite Crantock, the rock contains a collection of hollows which the National Trust compares in size to dinner plates.
That is an inconveniently recognisable shape. A small irregular mark might be allowed to remain a bit of weathering. Several large circles immediately look as though somebody intended something.
What they intended, if anybody made them at all, is where the agreement ends.
The National Trust’s account of Crantock locates the holes near the Fern Pit slip and treats their origin as unresolved. Suggestions have included natural processes and human activity. The South West Coast Path Association favours an unidentified manufacturing process over prehistoric carving.
An unknown manufacturing process is a splendidly unsatisfying explanation. It also has the merit of admitting the important missing part.
A mystery with a paper trail
The markings were attracting antiquarian attention in the late nineteenth century. Volume ten of the Journal of the Royal Institution of Cornwall, covering 1890–91, contains antiquarian W. Iago’s paper on recent archaeological discoveries. A reproduced illustration of the Gannel hollows is attributed to its page 190. The index separately lists “Rock Markings on the River Gannel” at page 297.
The drawing and index show that the marks had entered the Victorian discussion. They do not, by themselves, settle what the hollows were for.
Even with that limit, the history changes the question. This is not a mystery created by a recent photograph on the internet. The rock was interesting enough to draw and discuss in the Victorian period.
The river makes several explanations tempting
The Gannel was a working estuary. Ships, cargo handling and shore-side industry belong to its history, as When Ships Sailed Up the Gannel explains. That context makes practical human activity a reasonable possibility.
It does not identify a tool or a process. A convincing industrial explanation would need to account for the hollows’ size, shape, pattern and position, preferably alongside comparable features with a known purpose.
Natural explanations need evidence too. Weathering and abrasion can produce forms that look surprisingly deliberate, but saying that water can make hollows does not establish how these particular hollows formed. The rock type and surface detail matter.
Nor does the prehistoric landscape across the river give us permission to label the marks ancient rock art. Nearby barrows and settlements have their own dates. They cannot lend those dates to an unexplained feature merely by being close to it.
Imagine being the first person in your group to notice them. You point. Someone immediately offers a sensible explanation. Somebody else has heard a better one, involving considerably more ancient people. Within a minute, an ordinary walk has acquired a panel of experts.
That scene is an illustration, but the temptation is real enough. A recognisable shape feels like the beginning of recognition. We know what a bowl is. We know people make circles. The mind tries to complete the story before the rock has supplied the rest of it.
There is pleasure in holding that impulse for a moment. You can look at the same feature twice: first as something that invites an answer, then as something whose actual details ought to constrain it.
Somebody else stood here wondering
The Victorian drawing is part of the attraction. More than a century ago, somebody saw enough order in these hollows to record them. A modern photograph might allow us to recognise the same groups and notice what the shore has changed.
The illustration has not yet supplied an answer. It supplies an earlier pair of eyes. Before choosing a purpose for the holes, we need to establish exactly what that observer drew and wrote.
The tidal shore needs care, and the surface needs leaving intact. The useful work is comparison and recording.
Leaving the question open
An article about a mystery can feel obliged to solve it in the final paragraph. Fern Pit does not currently offer that service.
What it offers is a real feature, a nineteenth-century research trail and a set of explanations which have not yet been made to fit all the evidence. The uncertainty is part of the history of the place.
Elsewhere on the Gannel, The Gannel Crake: The Ghost That Was Supposed to Save Your Life turns an unsettling sound into a warning ghost. Here, an unsettlingly regular shape keeps attracting purposes. Both stories show how readily an unfamiliar feature asks us for an explanation.
The holes are worth looking at because they remain unexplained. Giving them a confident answer too soon would remove the most interesting thing about them.
