I did a diviving trip for my 50th a few years ago,you get picked up at your
hotel took to
marmaris to your boat I think there was about 15 for diving to 4 divers.On the way out to sea you are asked if anyone has dived before and then given a crash course in what to do,when you get to a cove you are kitted up show how to enter the water and a pair of you go down with a diver,you go down to about 12ft on your first dive to get used to the sensation which great.after approx 15-20 mins you come up and someone else goes down till evry one has had a go,meantime you can swim or sunbathe.Then you go to a different cove and repeat what you did but with the chance to go deeper(I could only manage 6-7 metres then my ear`s started with the pressure.
all in all it was a good day out something I always wanted to,the drinks are payable on board but the bbq was included