Looking up from inside an #excavated #cavern in the #corris #slate #mine actually inside the #mountain So hard to describe this picture and also impossible to capture the scale of what I was looking at... The opening is about 3 or 4 storeys above us looking out through an opening in the side of the mountain through #trees with #sunlight pouring in #illuminating the #cavern #breathtaking #corrisslatemine #corrismineexplorers #mining #nature #engineering #explore #photography #wales #travel #thingstosee #caves #caving #exploring

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