Taxi would be about 15/20 minutes if not the rush hour but if you get Sterling Mossuglu about 10/12 mins!
Haven't tried the Dolmus from Calis but from Fethiye it would be about 30 mins give or take. So Calis to Fethiye - say 15 mins?
Also Ovacik is quite big so depends which part you go to by taxi; dolmus stops anywhere along the Ovacik road.