One of the Deepest Underwater Caves in the World, Diving in Vrelo Matka, September, Macedonia 2016 Vrelo’s entrance is hidden along the Matka Canyon, about 1.5 km from the Matka Dam. It forms a canyon lake covering about 5,000 ha. There is also a ground section above the cave’s entrance, called Suva, famous for its stalactites and stalagmites. Vrelo Cave has …
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