Buenos Aires - Lonely Planet Author:Sandra Bao, Ben Greensfelder Revel in Buenos Aires as the portenos do. Head for San Telmo and learn the sultry tango or if in need of a caffeine fix take a seat in a timeworn cafe. This is a guide to the delights of the Paris of the south. Where to sleep, eat and shop for all budgets, a guide to Argentine beef and easy excursions to Montevideo, Uruguay and more.