There was no Catholic church in Marmaris up to 2010. Don't know about Orthodox - would like to know myself (email: philswood@aol.com) Your Consul in Marmaris may be able to help - phone number via the internet. There is definitely a British Consul who told me last year (2010) that the nearest Mass is at Izmir, a very long way away. I am going to that area on Monday 3 October for 2 weeks I will have internet connection if anyone can help. Thank you.