Cagliari is linked with the other towns of Sardinia by a network of buses. All major cities and most local destinations are served by ARST. City buses in Cagliari, Olbia, Alghero, and Sassari operate on the same system as those on the mainland: buy your ticket first, at a tobacco shop or machine, and punch it in the machine on the bus.
ARST. 800/865042; www.arst.sardegna.it.
Cagliari Bus Station. Piazza Matteotti, Cagliari, Sardinia. 070/6671824.