The beach is located adjacent to the ruins of Bithia, a city founded by the Phoenicians in the 8th century BC.
The brackish lagoon behind the beach acts as a vital wetland ecosystem for the Greater Flamingo (Phoenicopterus roseus).
The dunes at Sa Colonia are protected natural formations that prevent coastal erosion and preserve the local flora.
The archaeological site of Bithia was partially submerged by sea-level rises over the centuries, with some structures visible only under specific tidal conditions.
Sa Colonia Beach is characterized by its expansive stretch of fine, golden sand and shallow turquoise waters located in the municipality of Domus de Maria. The site is notable for its proximity to the Stagno di Chia, a brackish lagoon system that serves as a habitat for migratory birds, including pink flamingos. The beach is sheltered from the prevailing Mistral wind by high sand dunes covered in Mediterranean scrub. Archaeological remains of the ancient Phoenician and Roman city of Bithia are situated at the western end of the beach area. The seafloor is predominantly sandy, making it suitable for families with children. Accessibility is provided via a path that traverses the dune landscape. The area is part of the broader Chia coastline, known for its consistent water quality and clean coastal environment.
The elevated path near the Bithia ruins looking back across the entire crescent of the beach.
Bring polarized sunglasses to better see the submerged archaeological remnants near the shoreline.
Carry your own umbrella, as natural shade is minimal along the open expanse of the beach.
Plan to explore the walking path leading toward the Bithia ruins for historical context beyond the coastline.
Attempting to walk across the dunes outside of designated paths, which causes significant environmental degradation.
Do not remove sand, shells, or stones from the beach, as this is prohibited by regional law; use designated pathways to protect the dune vegetation.
