The Top 20 Caves in the Cambrian Mountains
Looking to visit a cave in the Cambrian Mountains on your next adventure? To help you better plan your next outdoor experience, we’ve collected Cambrian Mountains’s 20
best caves for you. Based on the experiences of other users, each is a recommendation you know you can trust — so you can better plan your next adventure.
best caves for you. Based on the experiences of other users, each is a recommendation you know you can trust — so you can better plan your next adventure.
Last updated: October 21, 2025
Porth Yr Ogof Cave
Highlight • Cave
Porth Yr Ogof (gateway to the cave, in Welsh) boasts the largest entrance of any cave in Wales at over 55 feet (17 m) wide and almost 16 feet (5 …
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Chartist Cave
Highlight • Historical Site
Chartist cave - discover where they stored their weaponry and where the walk to Newport effectively began!
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Sygun Copper Mine
Highlight • Historical Site
The Sygun Copper Mine offers the opportunity for those with a sense of adventure and curiosity to discover the wonders of a historic copper mine for themselves. This is suitable …
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Twm Siôn Cati's Cave
Highlight • Historical Site
Often referred to as the Robin Hood of Wales, Twm Siôn Cati is said to have used this cave as his hiding place to avoid being captured.
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RSPB Gwenffrwd-Dinas Nature Reserve
Highlight • Forest
This charming RSPB site is not far from Llyn Brianne and is home to Twm Sion Cati's cave. You'll find a great circular footpath running nearby the river, boasting beautiful …
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Llygad Llwchwr (Source of the River Loughor)
Highlight • Cave
This magical spot, Llygad Llwchwr which translates as "eye of the Loughor" is where the River Loughor emerges from its source - an underground lake at the Black Mountain. Below …
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Craig y Cilau Crags and Caves
Highlight • Natural Monument
The walk along Craig y Cilau is a pretty special experience. The imposing rock faces of the limestone escarpment are home to a really diverse variety of rare wild plants. …
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Devil's Gorge Cave Entrance
Highlight • Viewpoint
Go across the bridge above the cave and continue keeping to the left of the path. when you reach metal post about 2 mins after the bridge, do a u-turn …
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Cave at Parc Cenedlaethol Eryri
Highlight • Cave
Path closed for forestry work at pt 4, tour abandoned and diversion taken back to car park.
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Dan-Yr-Ogof Showcaves
Highlight • Cave
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. …
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