Cataño is the shore facing San Juan, and that condition — being on the other side of the water — explains almost everything. From here you see the walled city like a postcard floating over the bay; here is where, fleeing a revolution, the family that owns the most famous rum brand in the world arrived; and from here, every half hour, a humble ferry sets off that for more than a century has linked Cataño's workers with the capital. Few municipalities so small hold such a big history.
The history of Cataño is inseparable from San Juan Bay, on whose opposite shore it sits, across from the walled city. Throughout the entire Spanish colonial era, the region that the municipality occupies today was part of the capital's surroundings, an area of lowlands and mangroves on the other side of the water that related to San Juan through the bay.
That relationship across the water was decisive. While San Juan became one of the most important strongholds in the Spanish Caribbean — protected by its walls and by the El Morro and San Cristóbal castles — the Cataño shore worked as a crossing, supply and communication point. The vessels that crossed the bay connected the city with the surrounding mainland, in a constant bustle that is the direct antecedent of today's Cataño ferry.
The name 'Cataño' has several traditional explanations. One of the most widespread links it to the surnames of early settlers or landowners in the area. As happens with many place names of colonial origin, the sources present it with some variation, so it's best to take it as a tradition rather than a fact established with complete certainty. What's beyond doubt is that, from early on, Cataño was marked by its condition as the capital's 'shore across the water'.
For much of its history, the territory of Cataño did not constitute a municipality of its own, but was administratively linked to Bayamón, one of the area's large municipalities. The area grew as a settlement on the outskirts of San Juan, with its population, its activity tied to the bay and its own life, but dependent on another jurisdiction.
The aspiration to administrative autonomy came to fruition in 1927, the year Cataño was established as an independent municipality, separating from Bayamón. This separation reflected the demographic weight and the already consolidated identity of the town, which claimed its own municipal government. Cataño thus became one of Puerto Rico's municipalities, despite being one of the smallest in territorial extent.
From then on, Cataño followed its own path within the San Juan metropolitan area, developing its characteristic profile: a combination of densely populated residential zone and industrial and port area, taking advantage of its location on the bay. That double calling — residential and industrial — would mark the municipality's development throughout the 20th century.
The milestone that gave Cataño worldwide fame is the establishment there of the great Bacardí distillery. The history of this brand, however, doesn't begin in Puerto Rico, but in Cuba: the company was founded in Santiago de Cuba in 1862 by the Catalan Facundo Bacardí Massó, who revolutionized rum-making and gave rise to one of the most famous rum houses in the world, identified by its famous bat symbol.
Throughout the 20th century, and especially after the political changes in Cuba from 1959 — when the company and the Bacardí family left the island — the company expanded and diversified its operations across different countries. Puerto Rico became a key center of its production: the large plant in Cataño, on San Juan Bay, came to be the largest rum distillery in the world, which earned it the nickname 'the Cathedral of Rum'.
Over time, the Cataño distillery not only consolidated itself as an industrial colossus, but also as one of the main tourist attractions in Puerto Rico. Casa Bacardí opened its doors to visitors with tours that narrate the family saga, the rum-making process and cocktail culture, making Cataño a must-stop for those touring the metropolitan area. Thus, a small municipality on the other shore of the bay came to be on the world map of rum.
Few elements represent Cataño's identity so well as its ferry, the boat that crosses San Juan Bay between the municipality and the Old San Juan dock. This water-transport service is the direct heir of the vessels that, since colonial times, connected both shores, and it became over time an institution of the metropolitan area.
The Cataño ferry has been for generations an everyday, popular means of transport: thousands of Cataño residents have used it daily to go to work in the capital, crossing the bay in a few minutes for a very cheap fare. Today it's part of the metropolitan maritime transport system (known as AcuaExpreso), integrating the bay crossing into the San Juan area's mobility network.
For visitors, the ferry is also a tourist experience in itself: it offers one of the best views of Old San Juan from the sea, with its walls, its colorful houses and the El Morro and San Cristóbal castles standing out over the bay. In this way, the humble workers' ferry also became a beloved outing for tourists, uniting in a single crossing the everyday and the monumental, the two shores of San Juan Bay.
Behind the enormous Cataño distillery is one of the most novelistic family sagas in the Caribbean. It all began in 1862 in Santiago de Cuba, when the Catalan emigrant Facundo Bacardí Massó bought a small distillery and, after years of experiments, achieved a smoother, filtered rum that broke with the crude spirits of the time. According to the house's tradition, in the beams of that first still lived a colony of fruit bats; Facundo's wife, Amalia, proposed using the bat as an emblem, and that symbol — of good luck in Taíno culture and a symbol of family unity — ended up on every bottle of Bacardí sold in the world today.
The brand grew until it became almost synonymous with Cuba, but the story took a turn with the Revolution of 1959. The new Cuban government nationalized the company's properties, and the Bacardí family, which had opposed the regime, had to leave the island and its distilleries. What saved the company from disappearing was a decision made years earlier: Bacardí had already registered its trademarks outside Cuba and set up operations in other countries, among them Puerto Rico, where since the 1930s it had a plant in Cataño. That foothold outside Cuba allowed it to survive the exile and become a rum multinational.
Thus, the Cataño plant — expanded until it became the largest rum distillery in the world, the 'Cathedral of Rum' — went from being a secondary operation to the productive heart of the brand. The paradox is telling: a Cuban-born rum found its world capital on the other shore of San Juan Bay. That's why touring Casa Bacardí in Cataño today isn't just about tasting cocktails: it's about glimpsing a story of emigration, ingenuity, revolution and exile that spans a century and a half and two Caribbean islands.