Classified as a remarkable landscape under the Littoral Law since July 1974, "les îles sanfguinaires" and "La Parata" constitute an area of ​​community importance for birds and a natural area of ​​ecological interest in fauna and flora, which justified the creation of the site "Natura 2000".

     The archipelago is magmatic one. It consists of two distinct rocks resulting from immiscible magmas: diorite, sometimes with fine-grained enclaves, and monzonitic granite.

        There is a very diversified vegetation. There are no less than 150 different species on Mezzu Mare: annual seagrass vegetation, cliffs with vegetation of the Mediterranean coast, halo-nitrophilous forests, mixed lawns in the process of invasion, lentisk and oleaster. Among the rarest Plants, there is the spectacular Helicodiceros muscivorus. The vegetation is not high and adapted to the proximity of the sea.

        The "iles sanguinaires" are also the refuge of birds that can reproduce themselves in peace. You will see one of the most beautiful colonies of crested cormorants, the peregrine falcon, the Sardinian warbler, the Yellow-legged gull, and more rarely the cory's shearwater or Audouin's gull. The site of the sanguinary islands is also good to the relocation of ospreys who regularly frequent the islands for some years.
        The marine area, is home to the reef and the posidonia herbarium (a priority habitat) , as well as the dolphin, the giant limpet and the large mother-of-pearl.

          According to several accounts of travelers, including Alphonse Daudet in "the letters of my mill", these islands would have been inhabited in the past. Traces of human presence date back to the 16th century with the existence of a Genoese tower at the site of the current lighthouse. In 1806, the construction of the Lazaret on Mezzu Mare made it a sanitary post for coral fishermen returning from Africa. In 1865, the semaphore is put into service on the central peak. It will be disarmed in 1955. From 1985, the lighthouse is automated and nobody lives on the island anymore.

iles sanguinaires ombre chonoise