S'Arcada Lupiru (or S'Architeddu Lupiru) is located on the Selvaggio Blu (Blue Salvage) trail, the most arduous treck in Europe with rappel and delicate passage, on Supramonte di Baunei, Sardinia Island, Italy. However, the splendid double opening is easly accessible via a removal by boat into Cala di Luna (Moon Creek) from the town of Cala Gonone. The main opening has an estimated height of 8.5 meters and the second has 2.5 meters of span. S'arcada means arch or arcade in Sardinian language.