We are going on a cruise around the Greek Islands and Turkey and will have one day in Istanbul on Friday 5th May (10.00 -24.00 hrs).
We would like to know how easy is it to get from the cruise ship terminal to the main sights (Blue Mosque, Haghia Sophia, Basilica Cistern). Do we need to book a tour through the ship, or can we do the sightseeing on our own? We are a married couple in our mid 70's, quite fit and able to get around. Is there anything we should be especially aware of?