The Bay of Kotor is Europe's southernmost ria—a drowned river valley shaped by rising sea levels rather than glaciers—featuring steep cliffs plunging to the Adriatic Sea and a UNESCO World Heritage-listed medieval walled town. Visitors can explore ancient Roman mosaics in Risan, hike medieval fortifications around Kotor's old town, and experience the bay's layered history spanning from Neolithic settlements through Venetian and Ottoman rule.
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