Katakolon -- Only visited the town and really enjoyed that. We tried some different food and it was delicious. We spent an hour sitting in one of the cafes facing the sea (and the boat) outside under a warming pilar and awning in case it rained. I loved just sitting and taking in the ambiance. I couldn't walk far yet and it was less than a block from the ship. Do go to the bakery just behind the main street and get some of the delicious chocolate baklava.
Athens -- We took the bus to the metro to Acropolis, walked to the Agora, enjoyed delicious solvakia, gyro, and cappucinno and took the bus/metro back. There is a lift at the Acropolis for handicapped, but I was starting to walk some again by then. We liked the Agora section the best.
Istanbul -. Loved the Hamam, Basilica, Sah Restaurant and other food, Suleymaniye, and Hagia Sophia. The Spice Bazaar which was one of my favorites before but this time was too much heckling as you tried to browse. I was not pleased.
Two days, one was 4.5, and the other 3.5 so averaged to 4 overall.
Izmir -- Pre-arranged a tour and went to Ephesus and Sirince with Semyeli. Absolutely excellent tour -- we loved the Terrace Houses seeing vivid fescoes and mosaics and complete houses from many years ago still intact, and Sirince was so charming with the old streets, shopping, and food made right in front of you in brick ovens. Do be firm about not going to Leather and Carpet shops, they will say it is a stop for lunch and it isn't.
Naples -- Weather was horrible this day, but we did our best to stay warm and visited Pompeii and the National Archealogical Museum. Husband's favorite day by far. It was fascinating to walk through this big city, and even more so when we saw the frescoes, secret room, and large scale mode at the NAM. We did a bus to get to Pompeii and it was a breeze. Took the train back and metro to museum, then taxi back to cruise port. Hardest day for walking on me, but made it through.