I think he expect to swim up somewhere else and not just swim around a small area outside his balcony. He, apparently, had stayed at these resorts before, so I expect he knew what he was talking about.
A girl my daughter works with was at the Sensatori near Calis and said her and her husband paid 50 euros per day to use the large sunbeds the resort has...She had not been to Turkey before, so probably thought this was the norm.