We're coming from crete on the ferry and we're really hoping to see Oia and the Akrotiri archaeological site. Is this doable in the time we'll have? We will rent a car in Crete should we drive that over on the ferry? Just not sure how long things my take. I know there is a ton more to see but we'll only have the one day and we're trying to prioritize. If that is enough time could we also squeeze in the black beach?