you could catch a ferry near the station, but only during the summer.
In all the other seasons you should go to the other port and you need to go by taxi or public bus.
If you need more info don't hesitate
We will be in Italy during month of June.
Ferries should be running a fairly good schedule. My worry is how far do we need to walk from the station to the ferry?
Should we take the bus instead. It takes longer but may be closer to the station?
The SITA bus stops right outside the station and the ferry port is about a 7/10 minute walk (all flat no steps)
In june you could catch the ferry in the port that is located 5 minutes maximum from the station.
The port is near near near the station.