Its beach has been voted the most beautiful beach in Italy (2006). The town is experiencing an increasing touristic popularity.
It is asserted by some that the see was originally at Calmedia, but was transferred to Bosa after the destruction of the former town; also, that the first bishop was St. Emilius, sent thither by St. Peter and martyred in 70 AD but there is no historical evidence.
Pope St. Gregory the Great, in one of his letters, speaks of a Bishop of Bosa, without mentioning the bishop's name. In 1073 Constantino de Castro, Bishop of Bosa, who according to an inscription had built the cathedral dedicated to St. Peter, was appointed metropolitan of Torres by St. Gregory VII. Among the most illustrious bishops of this see are numbered: the learned Cardinal Giovanni Casanova (1424), G. Freancesco Fara (1591), author of the first (but very inaccurate) history of Sardinia; Serafino Esquirro, a learned theologian, who had been General of the Servites (1677).