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Redcliffe Caves
Cave at Phoenix Wharf (geograph 2093379).jpg
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Location Redcliffe
City Bristol
Country England
Coordinates 51°26′53″N 2°35′35″W / 51.448°N 2.593°W / 51.448; -2.593
Products Sand for glass and pottery manufacture
Opened Middle Ages
Closed Mid 19th century
Company Bristol City Council

Redcliffe Caves are a series of man made tunnels beneath the Redcliffe area of Bristol, England.

The Triassic red sandstone was dug into in the Middle ages to provide sand for glass making and pottery production. Further excavation took place from the 17th to early 19th centuries and used for storage of trade goods. There is some evidence that prisoners captured during the French Revolutionary Wars or Napoleonic Wars were imprisoned in the caves but it is clear that the local folklore that slaves were imprisoned in the caves during the Bristol slave trade is false. After the closure of the last glass factory the caves were used for storage and became a rubbish dump. The caves are not generally open but have been used for film and music events.

The explored and mapped area covers over 1 acre (0.40 ha) however several areas are no longer accessible and the total extent of the caves is not known.


The caves were dug to provide sand for glass making and pottery production. They were dug into the Triassic red sandstone cliffs, which give the area its name, adjacent to the southern side of Bristol Harbour, behind Phoenix Wharf and Redcliffe Wharf. The first excavation was during the Middle Ages but the majority of the digging was during the mid 17th and early 19th centuries. In the larger caverns the stone columns supporting the roof were not sufficient and these have been supplemented with wall arches made of stone, brick and more recently of concrete.

In 1346 a hermit called John Sparkes lived in the caves and prayed for his benefactor Lord Thomas of Berkeley. Several other hermits lived in the caves between the 14th and 17th centuries.

There is no evidence to support the rumours that the caves were used to hold slaves during the Bristol slave trade of the 17th and 18th centuries, however they were used to store the goods brought in by ships from Africa and the West Indies. There is some evidence that prisoners captured during the French Revolutionary Wars or Napoleonic Wars were imprisoned in the caves, while involved in the creation of the New Cut.

Once the final glass factory in Bristol had closed the caves were used for storage and the disposal of rubbish. Some of the waste came from the Redcliffe Shot Tower at the corner of Redcliffe Hill and Redcliffe Parade, where the cellar was dug out into one of the tunnels. Waste from the lead shot production process was deposited between its opening in 1782 and closure in 1968.

During World War II small parts of the caves were surveyed for use as an air raid shelter. A bomb created a crater into the caves which was subsequently filled in blocking access to some parts of the cave system.

The caves have been used as an underground venue for the Bristol Film Festival, and for theatre productions.

Location and extent

The full extent of the tunnels has not been explored as part of the site was split by a rail tunnel. The caves are believed to extend further than the currently visible area stretching to the south of the rail line. The explored and mapped area covers over 1 acre (0.40 ha) and extends nearly as a far as Bristol General Hospital. They may also once have linked with the crypt of St Mary Redcliffe. A survey in 1953 and 1954 explored and mapped the accessible portions and provided some evidence of the wider extent of the caves.

Several buildings in the area have or did have access to the caves from their cellars, including the Ostrich pub where part of a wall has been demolished to show part of one of the caves.


  1. Prince's Wharf, including M Shed, Pyronaut and Mayflower adjoining Prince Street Bridge
  2. Dry docks: SS Great Britain, the Matthew
  3. St Augustine's Reach, Pero's Bridge
  4. Bathurst Basin
  5. Queen Square
  6. Bristol Temple Meads railway station
  7. Castle Park
  8. Redcliffe Quay and Redcliffe Caves
  9. Baltic Wharf marina
  10. Cumberland Basin & Brunel Locks
  11. The New Cut
  12. Netham Lock, entrance to the Feeder Canal
  13. Totterdown Basin
  14. Temple Quay
  15. The Centre
  16. Canons Marsh, including Millennium Square and At-Bristol
  17. Underfall Yard
  18. Bristol Bridge
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