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Erika & Rüdiger: Flowstones
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Erika & Rüdiger: Stalagmites
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Erika & Rüdiger: The Chinese Pagoda
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Erika & Rüdiger: Flowstones
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Erika & Rüdiger: Flowstones
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Erika & Rüdiger: Ilusions
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Erika & Rüdiger: Flowstones
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Erika & Rüdiger: The cave
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Erika & Rüdiger: Flowstones
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Erika & Rüdiger: The narrows
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Erika & Rüdiger: The narrows
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Erika & Rüdiger: View from the Howe Cavern Motel