We were on a Caribbean cruise last month and took a good opportunity to book a nice cruise to the Mediterranean on the Holland America Oosterdam. The ports include Athens, Korcula Croatia, Zadar Croatia, Trieste Italy, Hvar Croatia, Dubrovnik Croatia, Corfu Greece, Sarande Albania, Argostoli Greece, Olympia Greece, and ending back in Athens. I can walk but not for very long. I plan to rent a scooter to use on the ship in order to reserve my strength for touring. My question is will I be able to see and do anything that doesn't involve a great deal of walking? My legs are weak and my overall stamina is fairly low. I can adjust to seeing a lot less than I used to but I want to know if I will be able to see/do anything much at all?