Tag Archives: cave

What lies beneath

Demon carving in Blackheath Cavern

On 18th Feb at 7.30pm in the Bakehouse there’s a talk about what lies beneath Greenwich.  Anthony Durham on Greenwich Underground – more interesting than on top.  There’s not much more information to go on at the  moment at the Greenwich Industrial History blog, but hopefully it will go into the many mysterious things beneath the heath.

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Blackheath Cavern transcript

Below is a transcript of the article from 1817 posted earlier. I had an offer to investigate the caves once, which I didn’t chase up, because I’m a coward and a fool, but I would dearly love them to be re-opened (safely)… Just look at this:

The holiday folks were yesterday attracted by the exhibition of a very curious subterraneous cavern – hewn through a solid chalk stone rock, 100 feet below the surface of the earth, on Blackheath Hill. The internal structure of the cave is similar to the excavation under the ruins of Ryegate Castle.

The writer of this article had the curiosity to inspect it. His guide, with a torch, descended a flight of thirty steps to a spacious chamber cut through chalk. It is about eight or ten feet high. At the extremity he came to a narrow passage, to pass through which he was compelled to bend almost double; this opened into another extensive vault, at least one hundred feet from the surface of the earth; it was lighted by candles, and at the furthest extent appeared a transparency, exhibiting in Latin “Behold the bowels of the earth.” On the left of this there is another large apartment, with water dropping from the chalky roof. It is illumined by a few candles, which discover the figure of a Hermit, with his silver beard. He wears a Monk’s cowl, beads, and crucifix. A large book is laid on the table, and his right hand rests upon an urn inscribed, “Sacred to the memory of her I loved.”

Above the hermitage are the words “Anchored Solitude.” Turning from the gloomy cell, the guide led the way to a cavern on the right, which was recently discovered. Here the apartment opening from a narrow passage is perfectly dry; on one side it there was an extensive space under a dome, but it was filled up a short time since by the falling in of three ponderous poplar trees, the roots of which may be seen. There is not the slightest ray of day-light from any aperture the fall may have produced. A very fine spring of water is found in this cavern, over which a pump has been raised, and the visitors may drink it perfectly pellucid. There are several grotesque heads and faces cut in the chalk, but these are evidently of modern manufacture. The following account was given by the guide:–

“It (the cavern) is supposed to have been in existence since the time of the Saxons, and to have been the retreat of rebels under Jack Cade, and banditti in the time of Cromwell. There is but one entrance to it, which many years ago was blocked up with stones, so as to be quite impervious, and no person had the least idea of the cavern. A Gentleman to whom the ground belongs, wanting to build a house a few years since, laid the foundation on the hill immediately over the excavation. The workmen employed on the building, one day left their work to go to dinner, and on their return found the house had disappeared. The foundation had given way. The cavern was then discovered, and the house was build more on the right, where it now stands.

The cavern was again shut up after the house was finished. About two years ago, the person now in possession opened the entrance. He had a door made, and, investigating the cavern, found a communication with the cave where the spring is. Last week he made steps to descend, and fitted up the interior, with a view to the gratification of the antiquary, &c.”


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Blackheath Cavern

Those amazing cavers at Subterranean Greenwich have found an old description of Blackheath Cavern, from the Morning Chronicle, on Tuesday 8th April 1817:

Blackheath Cavern – new 1817 description

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Was Blackheath Cavern a chalk mine?

Blackheath Cavern Guide To Knowledge 1833 via Subterranean Greenwich and Kent
More from Subterranean Greenwich and Kent, on the exact nature of the Blackheath Cavern.

See previously:


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Cave Map overlaid on Google Earth

Blackheath Caverns map overlaid on Google Earth
UPDATE: Several people pointed out that the map was oriented wrongly. I think I’ve corrected it now, but please feel free to correct it yourself (.kmz file), and send me a more accurate version! Incorrect version was here.

Here’s the map of the Blackheath Cavern from 1946 (mentioned in the previous post) overlaid onto Google Earth. I couldn’t work out how to get it into Google Maps unfortunately. Zoomed out version below (old map is in the top left corner, village is at the bottom).

Blackheath Map of Caverns from 1946 overlaid on google earth


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Deep Below Ground

Amazing photos of “The Blackheath Cavern” on the Subterranean Greenwich and Kent blog. Also known as Jack Cade’s Cavern, these are photos that I haven’t seen before! Well worth a look. Imagine the parties down there.

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