As a second option you can have a boat trip to see Bosphorus and in the afternoon you can visit Dolmabahce Palace, 19th century famed Ottoman palace.
You may enrich your itinerary by including a visit to Istanbul Archeological museum which has a very rich collection from times of antiquity.
Shopping in Istanbul
It depends on what you are looking for to buy. Istanbul is the largest city of turkey and is the heart of trade and commerce. It may therefore seem to be a bit more expensive than Kusadasi but it has got more options for serious shoppers. In Grand Bazaar and places alike, it is common and popular to bargain, so make sure you ask for better prices, you will definitely get it.
If you are not the most experienced of cruisers and exploring Istanbul for the first time you may need to have a good guide. Your best option is to have your own private guide. Many wonderful things are awaiting you in this fabulous city.
Visiting Cruise Lines
Holland America Line, Princess Cruises,
Windstar Cruises, Celebrity Cruises,
Crystal Cruises, Louis Cruises,
Hapag Lloyd Cruises, blue monarch,
the iris, spirit of adventure, orient queen,
millenium, marco polo, grand voyager,
galaxy, europa, crystal serenity,
clipper adventure, calipso, blue monarch,
brilliance of the seas, carnival freedom,
club med, emerald princess, discovery,
spirit, island star, rotterdam, royal princess,
sea dream, star princess, wind spirit, wind star.