At Nebida, the twin tunnels of Porto Flavia open through the cliff face. Carved into the rock in 1924 as an ingenious mining port, the galleries once allowed minerals to be loaded directly onto ships anchored below. Today it can be reached by land (with guided tours through the historic mining tunnels) or admired from the water on boat trips departing every day from the port of Buggerru or the Porto Cauli beach.

