We ate our packed lunch in the square between the blue mosque and the Hagia Sofia accompanied by a stereo and very loud calling to prayer from nearby minarets.

We spent the afternoon on a boat trip up the Bosphorous - plenty of cargo ships coming down from the Black Sea but none going up either during this 3 hour trip nor the following day for some reason.

There are so many feral cats in Istanbul - they are encouraged by the locals who leave cat food out and bowls of water. 

Kath has enjoyed souvenir shopping and the traders have loved her interest. One chap's line to attract us to his stall was to say "lovely family, beautiful daughter" only for Martin to say that Kath was for sale and would he like to buy her....embarrassing dad or what.