Grotta Su Marmuri, which means 'marble cave' in the local language, is a subterranean marvel in the Barbaricina subregion of Ogliastra. The entrance is located under the characteristic heel of the town of Ulassai itself, making it one of the most imposing caves in Europe.
The visible part of the cave is entirely flat and features two characteristic underground lakes. This section stretches 850 metres and contains imposing halls with very high ceilings, numerous calcitic concretions, and grand stalactites, stalagmites, and columns.
The cave's fauna includes the Ovobathysciola gestroi, a subterranean beetle frequent in the heel area, as well as a species of the Sardinian geotriton, an amphibian adapted to cave life called Speleomanthes imperialis. A large colony of bats also resides in the cave.
Sources: Wikipedia, Wikidata, Wikimedia Commons
Written by Sardinian
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