They offer direct destinations from Algeciras to Malaga, Granada, Marbella, Cadiz, Seville and Tarifa among others.

Autobuses Portillo bus company travels to Almeria, Cordoba, Granada, Jaen, Malaga and Marbella (with avanzabus only be bought at Malaga and Marbella)
 
Autobuses Comes bus company travels to Tarifa, Cadiz, Seville and Jerez de la frontera.
 
There are 5 city bus lines connecting the San Bernardo Station with the rest of the city: line 7, line 8, line 10, line 10A and line 12.