Best caves around Ystradfellte, a village in the Brecon Beacons National Park, offers a range of underground exploration opportunities. The area is known for its diverse cave systems, from accessible entrances to extensive networks. These natural formations are set within a landscape characterized by rivers and geological features. Visitors can explore various cave types, including large natural caverns and developed show caves.
Last updated: June 30, 2026
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Popular around Ystradfellte
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The Showcaves are amazing to see, I highly recommend to anyone to explore it and the area around it. Next door to the Showcaves is Brecon Beacons Resort which is amazing , first time I stayed here and it won't be the last, the place is wonderful with so much to do on your own, couple or family 😀.
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Not that much to add here, basically this is a great place to go on a rainy day, or to visit as a rest stop on a bike ride up the Swansea Valley. There is also a great nearby campsite/motorhome venue stay, if you are thinking of staying overnight.
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As well as the caves, here you have Porth yr Ogof car park, or Cwm Porth car park, to give it its proper name. It's one of the better car parks, with toilets and a small shop. On most days there is also hot food and drinks available. The famous Four Waterfalls walk also starts from here. This is a spectacular walk, and each waterfall is great in its own way. They are Sgwd Clun-Gwyn, Sgwd Isaf Clun-Gwyn, Sgwd y Pannwr, and Sgwd yr Eira.
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The national show caves is a tourist attraction with several ventures including the Shire Horse centre, a life size dinosaur model exhibit, kids play grounds and the three show caves. The caves are awesome, with over 1km of underground passage to explore, waterfalls and large chambers. Paid entry.
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Moderate trail with few mines to explore and lots of Waterfalls along the trail, enjoy
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Ogof Ffynnon Ddu Nature Reserve is named after a cave that lies under Carreg Cadno's northern slopes. Translating as the Cave of the Black Spring, this is the deepest cave in the United Kingdom, reaching 901 feet (274.5 m) under the surface. The nature reserve itself is a wild-feeling moorland landscape with many rocky outcrops. It enjoys splendid views of the region's peaceful countryside. The reserve protects the wildlife that thrives in this unique environment. Bats and moths populate the caves, while above ground peregrines and red kites hunt in the sky. Early summer is a majestic time to explore here, when flowers like mountain everlasting, autumn gentian, mossy saxifrage and great burnet show off their colours.
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A car park with toilets and a sitting area with tables for all to rest , have a meal or coffee
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Yes, the Dan-yr-Ogof Showcaves are highly recommended for families. They offer three distinct show caves, a dinosaur park with over 200 life-sized models, a Shire Horse Centre, and an Iron Age village, providing a comprehensive and accessible experience for all ages without needing specialized caving skills.
Porth Yr Ogof Cave is ideal for those new to caving. It boasts the largest cave entrance in Wales and offers an authentic exploration experience. Local companies provide guided tours for safe and informative caving, making it an excellent training ground for beginners.
Access to some significant cave systems, such as Ogof Ffynnon Ddu, is strictly controlled and requires a permit from the South Wales Caving Club. Entrances are gated and locked, so proper equipment and authorization are necessary for experienced cavers. However, accessible caves like Porth Yr Ogof Cave do not require permits for general exploration of the main passages.
For Porth Yr Ogof Cave, there is a pay and display car park, also known as Cwm Porth car park, which includes toilets and a small shop. Hot food and drinks are often available. For other areas, parking can be busy, with some car parks charging around £6 a day, such as near the Cave Entrance, Bannau Brycheiniog National Park.
Early summer is a majestic time to explore the region, especially around the Ogof Ffynnon Ddu Nature Reserve, when wildflowers like mountain everlasting, autumn gentian, mossy saxifrage, and great burnet are in bloom. However, caves can be visited year-round, though weather conditions outside may affect access and comfort, particularly for uncommercialized caves.
For uncommercialized caves like Porth Yr Ogof, waterproof clothing, sturdy footwear with good grip, and a headlamp are essential. The caves can be wet, muddy, and cold. For more challenging systems like Ogof Ffynnon Ddu, specialized caving gear, including helmets, harnesses, and ropes, is required, along with appropriate training and permits.
Yes, the area is renowned for its outdoor activities. The famous Four Waterfalls walk starts from the Cwm Porth car park near Porth Yr Ogof Cave, featuring Sgwd Clun-Gwyn, Sgwd Isaf Clun-Gwyn, Sgwd y Pannwr, and Sgwd yr Eira. You can find more walking routes in the Easy hikes around Ystradfellte guide, or explore Mountain Hikes and Road Cycling Routes in the wider region.
Near Porth Yr Ogof Cave, the Cwm Porth car park often has hot food and drinks available, in addition to a small shop. The wider Ystradfellte area and nearby villages offer pubs and cafes. The Dan-yr-Ogof Showcaves also have facilities for visitors, including food options.
Yes, the Bone Cave, part of the Dan-yr-Ogof Showcaves complex, is notable for the discovery of 42 human skeletons dating back to the Bronze Age, along with other artifacts. This provides significant insights into ancient human use of caves in the area.
Porth Yr Ogof Cave is popular due to its impressive scale, boasting the largest cave entrance in Wales, nearly 20 meters wide and 8 meters high. It offers extensive passageways and unique features like the "Wormhole" and "Letterbox." Its accessibility and uncommercialized nature make it a favorite for both novice cavers and those seeking an authentic exploration experience.
Ogof Ffynnon Ddu, meaning "Cave of the Black Spring," is unique for being the deepest cave in the United Kingdom, reaching a depth of 274.5 meters. It is also one of Britain's largest cave systems, with at least 50 kilometers of passages. It features huge chambers, diverse formations, and thundering river passages, offering a challenging experience for experienced cavers. It is part of a National Nature Reserve, recognized for its unique geology and wildlife.
While popular spots like Porth Yr Ogof can attract visitors, the sheer number of cave systems in the Brecon Beacons means that many smaller or less accessible caves remain less crowded. For a truly uncrowded experience, exploring the wider Ogof Ffynnon Ddu Nature Reserve offers a wild-feeling moorland landscape with splendid views, though access to the main cave system itself is restricted to experienced cavers with permits.
The Ystradfellte area is known for its waterfalls and rivers, which offer opportunities for wild swimming. The "Resurgence Pool" (also known as the "Blue Pool") at Porth Yr Ogof is a notable spot, but visitors should exercise extreme caution due to strong undercurrents and deep water. Always assess conditions and prioritize safety when considering wild swimming.
Public transport options to the immediate Ystradfellte area and its caves can be limited. It is generally recommended to travel by car to access the various cave sites and trailheads. Some local bus services might connect to nearby towns, but reaching the specific cave entrances often requires a further walk or taxi. Always check current local bus schedules for the most up-to-date information.


Extend your search for the best caves by checking out these guides of the top ones around Ystradfellte: