Not much has changed at classic bar since it opened in 1955—the vintage interior’s geometric floor tiles and mosaic-topped tables make you feel like you’ve stepped back in time. Jai-Ca’s home of Barceloneta was once a sleepy fisherman’s village and is now a beachfront neighborhood with tons of tourists. But locals also love this spot for giant plates of fried baby squid, chipirones (garlicky grilled scallops), and the bomba: a deep-fried potato ball filled with spicy ground beef that was born right in Barceloneta.

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