No surprise here: the Four Seasons offers all the perks that define a five-star hotel, like free-standing bathtubs facing TVs hidden in the bathroom mirror. Rooms are spacious with contemporary furnishings; the finest suites are located in the old mansion. There's also a gorgeous spa, an outdoor heated swimming pool and two top-notch restaurants, Elena and Nuestro Secreto.
Stop into Pony Line Bar, the self-proclaimed first polo bar in Argentina, for a nightcap: it's open to the public as well as hotel guests.