Twelve caves, from the basalt columns of Fingal's Cave on Staffa and the sea cave at Benagil in the Algarve to the show caves of Carlsbad, Luray and Remouchamps. Show caves are dark and many ban tripods, so bring a fast lens and check the rules first. Benagil, the Blue Grotto in Malta and Fingal's Cave are reached by boat, and trips depend on the sea. The Ape Caves lava tube has no lights at all, so bring two torches.
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