I am inquiring about the ferry service Marmaris – Rhodes Island 

Ferry/hydrofoil winter schedule starts operating from early November until May. Our main sources of information are the shipping companies and the Merchant Marine Ministry. The schedules listed in our site are updated on a weekly basis after contacting and checking with the shipping companies. In the meantime, changes can happen until the next time we update our site. A much-reduced ferry/ hydrofoil service operates during the Winter months. If the weather is bad ferries may not run to timetable or may not run at all! Therefore, it is best to confirm your schedule before traveling. More details, schedules, fare prices and booking are on http://rhodes.marmarisinfo.com