There is a supermarket near the yacht marina, not affiliated with any chains, and the prices are almost the same as anywhere else in Turkey. They accept credit card payments if the total sum of your purchase is more than YTL 3.00 ~⬠1.50/~US$ 2.10, otherwise cash only.
There are two ATMs in front of the ticket-office at the port where the ferries leave for Cyprus; they look out of place and battered, but accept foreign cards and are in working order.
