Caves · South Wales
Ogof y nos hir, Ogof Ffynnon Ddu (OFD) top entrance
In or near Ystradfellte.
Ogof y nos hir, Ogof Ffynnon Ddu (OFD) top entrance is a cave in the United Kingdom.
Tawe Tours — 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: 51.8299°, -3.6505°.
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
Sources
- osm: n394159426 (ODbL)
Other places nearby
Cwm Dwr (OFD)
Caves · 0.7 km
Carreg Lwyd
Mountains & hills · 0.8 km
Penwyllt
Historic churches · 0.9 km
Ogof Ffynnon Ddu
Mountains & hills · 1.0 km
Carreg Cadno
Mountains & hills · 1.2 km
Ogof Ffynnon Ddu (OFD) bottom entrance
Caves · 1.7 km
Craig-y-Rhiwarth Hillfort
Vineyards · 1.8 km
Ogof Coed Cae
Caves · 1.8 km
Ogof-yr-Ardd
Caves · 1.8 km
Tafarn-y-Garreg
Campsites · 2.0 km
Dan-Yr-Ogof Farm
Zoos & aquariums · 2.1 km
Brecon Beacons Camping & Caravan Park
Campsites · 2.2 km
Nearby
📷 3📷 5📷 5Historic churches · South Wales
Penwyllt
Penwyllt (Welsh: "wild headland") is a hamlet located in the upper Swansea Valley in Powys, Wales, lying within the Brecon Beacons National Park. A former quarrying village, quicklime and silica brick
📷 5Mountains & hills · South Wales
Ogof Ffynnon Ddu
Ogof Ffynnon Ddu — cave in the Upper Swansea Valley in South Wales.
📷 3📷 3Caves · South Wales
Ogof Ffynnon Ddu (OFD) bottom entrance
Ogof Ffynnon Ddu (OFD) bottom entrance is a cave in the United Kingdom.
Where to eat & stay near Ogof y nos hir, Ogof Ffynnon Ddu (OFD) top entrance
Places to stay
📷 5📷 5Campsites · South Wales
Brecon Beacons Camping & Caravan Park
Brecon Beacons Camping & Caravan Park — a campsite in wales south.
📷 5Campsites · South Wales
Cae Glas Camping
Cae Glas Camping — a campsite in wales south.
📷 5Campsites · South Wales
Brecon Beacons Caravan Touring Park
Brecon Beacons Caravan Touring Park — a campsite in wales south.
📷 5
📷 5Places to eat & drink
📷 5
📷 7
📷 7Restaurants · South Wales
Chang Thai Cuisine
Chang Thai Cuisine — a restaurant in wales south.
📷 5More caves in this region
📷 3Caves · South Wales
Agen Allwedd (Ogof Gam)
Agen Allwedd (Ogof Gam) is a cave in the United Kingdom.
📷 3
📷 3
📷 3Frequently 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?
- The nearest town is Ystradfellte. 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.