Pwll Dwfn

Pwll Dwfn is a cave in South Wales. ^[1]

11 relations: Cave, Cave gate, Caving, Coral, Dan yr Ogof, Fossil, Limestone, Single-rope technique, South Wales, Sump (cave), Swansea Valley.

Cave

A cave is a hollow place in the ground, specifically a natural space large enough for a human to enter.

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Cave gate

A cave gate is a manmade barricade typically placed at the entrance to a cave or just inside the entrance of a cave in an effort to impede or mitigate human access to a cave's interior.

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Caving – also traditionally known as spelunking in the United States and Canada and potholing in the United Kingdom and Ireland – is the recreational pastime of exploring wild (generally non-commercial) cave systems.

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Coral

Corals are marine invertebrates in the class Anthozoa of phylum Cnidaria.

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Dan yr Ogof

Dan yr Ogof, located at the National Showcaves Centre for Wales, is a long cave system in south Wales,about north of Ystradgynlais and southwest of Brecon, in the Brecon Beacons National Park.

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Fossil

A fossil (from Classical Latin fossilis; literally, "obtained by digging") is any preserved remains, impression, or trace of any once-living thing from a past geological age.

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Limestone

Limestone is a sedimentary rock, composed mainly of skeletal fragments of marine organisms such as coral, forams and molluscs.

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Single-rope technique

Single-rope technique (SRT) is a set of methods used to descend and ascend on the same single rope.

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South Wales

South Wales (De Cymru) is the region of Wales bordered by England and the Bristol Channel to the east and south, and Mid Wales and West Wales to the north and west.

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Sump (cave)

A sump or siphon is a passage in a cave that is submerged under water.

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Swansea Valley

The Swansea Valley (Cwm Tawe), one of the South Wales Valleys, is the name often given to the valley of the River Tawe area in southern Wales, United Kingdom.

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References

[1] https://en.wikipedia.org/wiki/Pwll_Dwfn

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