Many thanks to Paul Swire 'Beardy' for providing Project Baseline South Wales Caves.
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| Porth Yr Ogof Main Entrance from inside - photo by Paul Swire |
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| Porth Yr Ogof. Station 4 Main Entrance. 09/12/2014. Photo: Paul Swire |
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| Porth Yr Ogof. Station 5, Resurgence. 09/12/2014. Photo - Paul Swire. |
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| Looking upstream from Main Entrance. Photo - Paul Swire. |
