Viazul Buses operate an city bus service to/from most major destinations including Pinar del Rio, Sancti Spiritus, Camagüey, Cienfuegos, Matanzas, Santa Clara, Santiago de Cuba, Trinidad, Varadero and Viñales. The main Viazul bus terminal is 3km southwest of central Havana near the Plaza de la Revolucion. Departing buses also stop at the central (Astro) bus terminal, but arriving buses don’t. If you are using the central bus terminal, you buy tickets and wait for the bus in a nicely mainatined air-conditioned office near the west entrance of the terminal. Schedules for Viazul buses are sometimes shown on the Havanatur website.