Porth yr Ogof is a large cave near Ystradfellte in the Waterfall Country of the Brecon Beacons, where the River Mellte disappears underground into what is said to be the widest cave entrance in Wales, around twenty metres across. From a car park nearby, visitors walk down to the great dark mouth of ...
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Parking nearby
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Food Spots nearby
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Staycations nearby
Parking:
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Staycations:
2 day, 8 overnight
FAQ's/Things to Know
Where is Porth Yr Ogof Caves?
South Wales contains this remarkable landmark near the village of Ystradfellte. Hikers usually find the massive limestone entrance along the river valley floor.
What type of place is Porth Yr Ogof Caves?
Porth Yr Ogof Caves is a cave near the southern boundary of the Brecon Beacons National Park in Wales.
When is the best time to visit Porth Yr Ogof Caves?
Dry weather across any season provides the safest conditions for exploring the cavern mouth safely. Heavy rain can flood the underground channels quickly, so checking regional water levels before setting off remains essential.
What can you do at Porth Yr Ogof Caves?
Walking along the smooth limestone pathway allows you to admire the massive rocky gateway where the river plunges underground. Photography enthusiasts also love capturing the dim shafts of light piercing the main cavern and the green moss coating the external rock face.
How long should I spend at Porth Yr Ogof Caves?
Spending around an hour allows ample time to photograph the impressive cavern entrance and admire the rugged gorge. A longer stay suits experienced cavers who intend to explore the deeper underground labyrinth alongside a qualified guide.
Where do I park at Porth Yr Ogof Caves?
Spaces for vehicles total ten in the immediate vicinity, split into a mix of two day and eight overnight spots. Full details are available on the UK Hidden Gems app.
Where can I eat near Porth Yr Ogof Caves?
There are no food spots recorded immediately near Porth Yr Ogof Caves, check the UK Hidden Gems app for the nearest options.
Where can I stay near Porth Yr Ogof Caves?
There are no staycation spots recorded immediately near Porth Yr Ogof Caves, check the UK Hidden Gems app for the nearest options.
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Last Updated:
02 July 2026


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