Hi there- can you catch a bus to Limassol from the harbour bus station please?
No, intercity buses run from Karavella bus station up in the old town.
You can get a bus from the harbour to Karavella if you don’t want to walk.
As MissSindy says, you have to go to the other bus station.
Buses 603 and 618 will get you from the harbour (kato Paphos) station to Karavella station
Here's the intercity bus timetable from Karavella