Europe with an ECV?

I must use an ECV for long distances of walking and rent one to bring on vacations from home (so I have for airport, etc.). I desperately want to go on a European cruise, but scared because I don't know how ECV friendly the ports are. I notice many ports shore excursions (99% of them) are not wheelchair friendly.

I was looking at this itinerary below. What ports are easy to just go to nice places by port, and which ones do I need to go further for (example I am pretty sure to go to Rome you need to take a bus there).

Thanks for any insight.

04/02

Barcelona, Spain

(Depart 05:00 PM)

04/03

Fun Day At Sea

04/04

Livorno (Florence/Pisa), Italy

(07:00 AM - 08:00 PM)

04/05

Rome (Civitavecchia), Italy

(07:00 AM - 08:00 PM)

04/06

Naples (Capri/Pompeii), Italy

(07:00 AM - 07:00 PM)

04/07

Fun Day At Sea

04/08

Dubrovnik, Croatia

(08:00 AM - 05:00 PM)

04/09

Corfu, Greece

(07:00 AM - 04:00 PM)

04/10

Messina (Sicily), Italy

(09:00 AM - 06:00 PM)

04/11

Valletta, Malta

(07:00 AM - 07:00 PM)

04/12

Fun Day At Sea

04/13

Cagliari (Sardinia), Italy

(08:00 AM - 06:00 PM)

04/14

Fun Day At Sea

04/15

Barcelona, Spain

Oops nevermind - just saw the europe specific board - will post there!