Hi. Planned a trip for my parents: Venice, Florence, Rome and Sorrento, 13days. My mom just recently fractured and dislocated her ankle and can not walk. Any thoughts as to whether we can still take her if dad and I take turns pushing the wheelchair? This was their first time out of the country, and my dad's 65th bday. Are things wheelchair accessible? Please advise. I saw the recent post re: Rome, and am a little more hopeful at the moment, but not sure if this is realistic for a bus trip.