A horizontal lead miners’ adit (a level tube driven horizontally into the slope) leads to the cavern itself, a limestone cave, 200 metres below earth. Because the small adit is always flooded, entrance to the cave is only possible by boat after descending a lengthy stairway. The cavern opens up at the end of the adit, featuring fluorspar veins, stalactites and stalagmites, and the “Bottomless Pit.”
Royal Botanic Gardens, Kew
Unlock the amazing power of plants and fungi. Visit our world-leading botanic gardens and discover our science and conservation work.
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10am–7pm
10am–7pm
10am–7pm
10am–7pm
10am–7pm
10am–8pm
10am–8pm
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