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AH_Tufa Dam Waterfall Plitvice Lakes Nationa Park Croatia Polypodium vulgare_5267.jpg
Waterall cascading over a naturally formed tufa dam. The tufa results from calcium carbonate deposits gradually accumulating on mosses and water plants, creating a solid limestone structure over time. Note the Polypodium vulgare, the Common Polypody Fern {Polypodium vulgare} that has colonised a tree branch. Plitvice Lakes National Park, Croatia. November.