Ancient Monuments

History on the Ground

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Longhole Cave

A Scheduled Monument in Port Eynon (Port Einon), Swansea (Abertawe)

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Latitude: 51.5431 / 51°32'35"N

Longitude: -4.2348 / 4°14'5"W

OS Eastings: 245125

OS Northings: 185059

OS Grid: SS451850

Mapcode National: GBR GR.NM13

Mapcode Global: VH3N2.KG3W

Entry Name: Longhole Cave

Scheduled Date: 23 March 1977

Source: Cadw

Source ID: 3630

Cadw Legacy ID: GM391

Schedule Class: Monument

Category: Cave

Period: Prehistoric

County: Swansea (Abertawe)

Community: Port Eynon (Port Einon)

Built-Up Area: Port-Eynon

Traditional County: Glamorgan


The monument consists of a cave containing archaeological deposits that can date from as early as the Palaeolithic period. A cave may have been used for occupation, storage, burial, refuse, or as a temporary shelter.

Long Hole is a cave situated approximately 40m above OD in a small limestone crag surrounded by grassy slopes, above the sea cliffs 2km to the west of Port Einon. The south south-east facing entrance is 3.5m wide, however, the width narrows to 2m along the 13m length of the cave. The height varies between 1.6m and 2.3m. Excavations undertaken in the 1861 and 1969 produced a finds assemblage dating from the Early Upper Palaeolithic and the Middle Palaeolithic ages.

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.

Source: Cadw

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