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The Great Britain Guide

Caves Β· South Wales

Ogof y nos hir, Ogof Ffynnon Ddu (OFD) top entrance

In or near Ystradfellte.

Free admission

Ogof y nos hir, Ogof Ffynnon Ddu (OFD) top entrance is a cave in the United Kingdom.

Brecon Forest Tramroad Incline - geograph.org.uk - 4566306

Tawe Tours β€” CC BY-SA 2.0 via Wikimedia Commons licence

Plan your visit

Typical visit
45 min–1.5 h
  • Free entry
  • Dog-friendly

About

Ogof y nos hir, Ogof Ffynnon Ddu (OFD) top entrance is a named cave entrance in the United Kingdom. Admission is free. Coordinates: 51.8299Β°, -3.6505Β°.

Photo gallery

Official information

Ogof Ffynnon Ddu, also known as OFD, is a significant cave system located in the Upper Swansea Valley of South Wales. It is the deepest cave in the UK and features a complex network of passages and chambers, showcasing unique geological formations and diverse underground wildlife.

Place summary

Ogof y nos hir, Ogof Ffynnon Ddu (OFD) top entrance is a cave located in South Wales, within the parish of Tawe-Uchaf. This site is known for its impressive underground formations and is part of one of the most extensive cave systems in the UK.

AI-generated from the structured facts on this page (operator, designation, listing, era). Not a substitute for visiting.

Coordinates
51.8299, -3.6505
District
Powys
Parish
Tawe-Uchaf
Postcode
SA9 1GQ
Parliamentary constituency
Brecon, Radnor and Cwm Tawe
Official site
en.wikipedia.org

Sources

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Caves Β· South Wales

Ogof Ffynnon Ddu (OFD) bottom entrance

Ogof Ffynnon Ddu (OFD) bottom entrance is a cave in the United Kingdom.

FreeπŸ•

Where to eat & stay near Ogof y nos hir, Ogof Ffynnon Ddu (OFD) top entrance

Places to stay

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Bryn Bwch

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The New Inn

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Places to eat & drink

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Historic pubs Β· South Wales

Red Lion Hotel

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CafΓ©s Β· South Wales

Old Market Tavern

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Restaurants Β· South Wales

Chang Thai Cuisine

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Frequently asked questions

Where is Ogof y nos hir, Ogof Ffynnon Ddu (OFD) top entrance?
Ogof y nos hir, Ogof Ffynnon Ddu (OFD) top entrance is in South Wales, United Kingdom (postcode SA9 1GQ), in the parish of Tawe-Uchaf.
What is Ogof y nos hir, Ogof Ffynnon Ddu (OFD) top entrance?
Ogof y nos hir, Ogof Ffynnon Ddu (OFD) top entrance is a cave in the United Kingdom.
How do I get to Ogof y nos hir, Ogof Ffynnon Ddu (OFD) top entrance?
Drivers can use postcode SA9 1GQ.
Is Ogof y nos hir, Ogof Ffynnon Ddu (OFD) top entrance free to visit?
Yes, Ogof y nos hir, Ogof Ffynnon Ddu (OFD) top entrance is free to enter.
How do I get to Ogof y nos hir, Ogof Ffynnon Ddu (OFD) top entrance?
Drivers can navigate to postcode SA9 1GQ. It sits within the Brecon, Radnor and Cwm Tawe parliamentary constituency.