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Cof Cymru: National Historic Assets of Wales · Wales

Nanna's Cave

Tenby, Pembrokeshire, Wales

The record

Designation
Scheduled monument
Site type
Cave
Period
Prehistoric
Date of designation
11 September 1986
Community
Tenby
Unitary authority
Pembrokeshire
Country
Wales
Coordinates (centre of the scheduled area)
51.64095, -4.68091
SAM number
PE425
Cadw record number
690

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1636 "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

The following provides a general description of the Scheduled Ancient Monument.

The monument consists of a cave containing archaeological deposits, dating to the palaeolithic period. Nanna's Cave is 3m wide, 3.5m high and 5m deep, situated near the top of coastal cliffs, with an eastern facing entrance. There is a level turf covered platform in front of the cave. Excavations revealed Palaeolithic and mesolithic flint implements, and pottery and implements from the Neolithic, Bronze Age, Iron Age, Roman and Medieval periods were uncovered. The top of the cave is turf covered.

The monument is of national importance for its potential to enhance our knowledge of prehistoric settlement, ritual and funerary practices. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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