Ricardo Manuel Pires Martins likes to brag about the popularity of his bar among Japanese tourists. We don’t begrudge him that, because if you’re in the market for seafood, particularly the less-cooked kind, as these tourists evidently are, Adega Pérola is your bar. Tucked on a commercial lane a few blocks behind the Art Deco condo-and-hotel jam that is the Copacabana beachside, Rio's Adega Pérola sticks close to its Iberian roots, with wine jugs lining the high wall shelves and a selection of about a hundred tapas stewing in their respective marinades behind the glass bar window.

There’s one thing about the very popular Copacabana bar Pavão Azul that remains a mystery, even after 60-odd years of business: its name. Pavão azul means “blue peacock” in Portuguese, but even the owners don’t know where this curious name come from. Some customers who have been frequenting the bar since it opened in the 1950s say that it was named after the bar in the movie “Casablanca” – except that that place was actually called the Blue Parrot. What’s not a mystery is the bar’s popularity. Once just a regular old botequim – a small bar serving simple food – Pavão Azul was discovered by food critics thanks to its patanisca.

The eyes of Tacacá do Norte’s harried staff widen as yet another customer arrives during the lunchtime rush. The bedroom-sized snack bar can barely hold one line of chairs around its bar but they have somehow managed to squeeze in two. Impatient regulars shake hands and whistle “psst” to the young men staffing the establishment, who gingerly hand steaming pots of shrimp soup and freshly puréed juices over the packed bar.