You will arrive to St CHARLES TRAIN STATION. From there, you can take the tube, a tram, or a bus.
CLICK ON THE PICTURE ON THE LEFT of October's Marseille-Cassis semi-marathon to acceed the transport network. HOLD ON, IT TAKES A LITTLE TIME. AND USE THE ZOOM EXTENSION
When you are on the network page, you can enlarge it with the sign of size percentage.