Blue Mines Cycle Trekking

Trek 6 – Masua & Porto Flavia (Cala Domestica Beach)



  • Breakfast 08.00-09.15.
  • Cycling 30km (19 miles, difficulty level medium) to visit Masua Panoramic view (Pan di Zucchero).
  • Lunch.
  • Then a visit to the Porto Flavia mine site and the Museum.
  • Minibus transfer to relax on the famous Cala Domestica beach for the rest of the afternoon.
  • Return by minibus to site.
  • Dinner served between 19.30-22.30.



Porto Flavia is a sea harbour located near Nebida. Built in 1923–24, it served as the mineral production hub of Masua in the west coast of the Sardinian Sulcis area. It is named after Flavia Vecelli, the daughter of Cesare Vecelli, who engineered and designed the harbour. The harbour’s characteristics make it unique in the world, and at the time of its construction it was an outstanding engineering feat. Porto Flavia’s importance decreased in the 1960s after the decline of mining activity in Sulcis, and it was closed in the 1990s when mineral production in Masua ceased. Today, it is owned by IGEA SpA, a public company charged with the restoration and preservation of the old mining plants. Porto Flavia is a UNESCO-protected site, and is one of the suggested destinations for tours of minerary and industrial archaeology sites in the region. Daily tours are held in the tunnel, guided by former workers or mining technicians of IGEA.

Set in a wild corner of the south-western coast, among white calcareous cliffs, the inlet of Cala Domestica delights the eyes of the spectator with a beach covered in fine sand mixed with gravel, with rocks dotted all around, as well as being hemmed in by dunes punctuated by rich scented vegetation in stark  contrast with the unbelievable blue of the sea.

The beach is found in a mining zone, and therefore on view, are the ruins of the buildings associated with the nearby mines; the stores or the depositories of the minerals to be embarked, but also tunnels that lead to the so-called Caletta, a reserved and very intimate beach, in which the mouth of a stream is found. In front, on the calcareous peninsula that looks to the south, the view is dominated by a solitary Spanish tower.

The area is particularly loved by scuba fishing enthusiasts or simply by those wishing to take a dip in its uncontaminated waters, giving an opportunity with a mask and fins (provided) to discover the treasures that are hidden below the waterline.