From Fethiye up to Ovacik there is only one road,up the mountain and this goes on to Hisaronu or Olu Deniz.There is a dolmus sometimes which also goes from Fethiye to Ovacik,Hisaronu and then on to Kaya but I do not know how often that one runs in the winter months.
Maybe they will start a dolmus which will go from Fethiye up to Kaya on the route which passes the Castle in Fethiye and then this may go on to Fethiye through Hisaronu and Ovacik.If they do that will be a very scenic trip.