North of the Sinis Peninsula, where the Montiferru slopes down
to the sea, is the beach of S’Archittu.
The unique feature of the beach is the rock in which the erosive
force of sea and wind have carved a superb natural arch about ten
9
meters high.
The waters, sheltered by the rock, represent a brightly colored pool
within which to swim safely.
The village of the same name that stretches along the entire bay is
characteristic.