Trains in Sardinia
There are a few connections done with ordinary (no high speed) trains.
Because the connections are managed by two different companies, it is not possible to buy all connections through one of the companies, as for example, Cagliari-Alghero. It is necessary to buy two different tickets according to which company does each part of the trip. Also usually there are automatic machines on each train station where it is possible to buy the tickets, other than online.