To travel between Marbella and Ronda and other cities on the Costa del Sol, one can take the Portillo bus. One can pay the bus driver for the ticket.

Estación de Autobuses de Marbella
Avenida. del Trapiche s/n.

Portillo

Web: http://www.ctsa-portillo.com/index.html

Customer service direct line 902 143 144