Hi there, we did the Crimean discovery 2ce in the last 2 years. Found it fascinating to go to places we would never have verntured to by land. On the sea day you get wonderful views of the Dardanelles, and go through Istanbul all lit up at night. Nessebar was a short stop, it's a Unesco heritage site, so well worth exploring, and just a short flight of steps from the ship, so no need for an excursion unless you particularly like the look of something. Sevastopol is really interesting, would strongly recommend the Crimean war excursion that goes to the Panorama museum and Charge of the light brigade site. It's not really a museum, more a gigantic painting, quite incredible. It's a nice city to walk around, but very few people speak English, so doing it yourself would be tricky. We've tried 2 excursions in Constanta, a winery that was ok but there were no vinyards, and a beach shuttle to Mamaia. Wasn't a great beach, but there were touristy shops, cafes and places to change money. Istanbul we did ourselves, took a taxi ride to Blue Mosque. Taxis I think were about 20 euros from the ship. Hagia Sofia is right next to it, and Topkapi palace just a bit further on. We walked to the Grand Bazaar. Went to Spice Bazaar, it sells everything, not just food. From there you can walk under the bridge, lots of shops and cafes, fish being landed right in front of you, amazing sights, smells and sounds, and back to the ship. There is a tram but we never actually saw it! Limnos is just charming, about half a mile walk from ship to the main village, lovely beach. We didn't have much time there, strong winds stopped us docking until about 5 pm. Sure you will have a great time,
kate