First International Day of Caves and Karst to be celebrated in Postojna
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As of this year this year, 13 September is observed as International Caves and Karst Day, proclaimed by the UNESCO General Conference on 12 November 2025. Slovenia will mark the first International Caves and Karst Day in Postojna, home to the International Union of Speleology. …
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- October 03, 2026 20:32
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