Tinkerbelle
I'm not sure about Cappadocia, although i have heard that it is not feasible from Icmeler.
But we have been to Istanbul a few times by making a two centre holiday of it. We did 4 nights in Istanbul and then 10 nights in Icmeler.
ICR can now arrange all this for you or you can do your own thing. We were forced to do our own thing as ICR did not have the package then but we found it okay. The only problem we had was arranging our
transfer (or should i say completeing it sucessfully)as the taxi drivers are programmed for international arrivals when you are in fact at domestic arrivals and they are waiting at the international terminal. Make sure you have phone contact just in case.
John