7Head underground at Grotte di Castellana

The porous limestone beneath Puglia’s soil isn’t only good for winemaking, it’s also created spectacular caves.

Chief among them is the Grotte di Castellana, 40km southeast of Bari and the largest cave system in Italy, discovered in 1938. Book a spot on one of the after-dark tours, when guides lead torch-lit expeditions to see the cave’s array of stalactites and stalagmites.

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