Original: The island is divided into eight municipalities , of which Portoferraio is the main one , the others ; Campo nell ` Elba , Capoliveri , Marciana , Marciana Marina , Porto Azzurro , Rio Marina , and Rio nell ` Elba , are part of province of Livorno , for a total of about 30 thousand inhabitants , which increases considerably during the summer .
Simplified: The island is divided into eight communes : Portoferraio , Campo nell ` Elba , Capoliveri , Marciana , Marciana Marina , Porto Azzurro , Rio Marina and Rio nell ` Elba .