A gigantic block of pale limestone emerging solitary from the sea just off the coast of Masua, soaring to a height of nearly 133 meters: Pan di Zucchero (Sugarloaf Rock), known historically in Sardinian as Concali su Terràinu, is considered the tallest sea stack in the Mediterranean. It split from the cliffs of Punta Is Cicalas in distant antiquity due to the relentless erosion of wind and waves.
Its massive structure is hollowed out by karst caves and natural tunnels navigable by boat, while its sheer vertical faces feature climbing routes favored by rock climbers from across Europe. Looking out at the sea stack from the mainland places you directly opposite the tunnels of Porto Flavia—the historic mining loading facility carved halfway up the cliff face, where ore was once funneled straight into the holds of waiting cargo ships.
Reaching the islet by RIB, kayak, or boat allows you to admire the waxy texture of its limestone and the shifting hues of the water below up close. A visit to the sea stack pairs naturally with exploring the coast of Nebida, with its historic cliffside ore-washing plants (laverie) and hidden coves nestled among the craggy bluffs.
