Bosa was built in the IX century on a valley crossed by Temo river and touched by a crystal clear sea.  
The Malaspina Castle, an ancient military fortress now restored and now open to the public, towers above the city. All around the castle, the restored medieval village named Sa Costa characterized by pink trachyte can be found. Bosa is famous for the production of a white wine named Malvasia and for typical manufactured yarns called "filet".
The "Nautica Pirisi" at the end of the Temo river, is just a walk far form the center and can also be reached by sailing.