The hotel boasts the only rock cave spa in Mykonos, a grotto with craggy boulder walls where you can lie in a massage chair that vibrates in time to music. It has two treatment rooms, a steam bath room, an indoor jacuzzi, a hair and beauty salon and tropical rain beds — an enervating experience that had a bit of fishmonger’s slab feel about it, though not, I have to say, in a bad way.