I have had a week on a gullet liveaboard diving - the boat sailed from Fetyhe to Marmaris. The diving wasn't good for the marine life but the underwater scenery with swimthroughs etc was good. Some sites had amphora's too. The crack on the boat was excellent and just gently sailing around was brill.
The second week we stayed at a hotel in Fetyhe and dived with European Divers outfit doing day boat diving.
Would do the gullet thing again but the diving generally was poor, they seem to use dynamite to get the fish out of the water
Lyv