Exiled from Cuba, the Bacardí family built a small rum distillery here in the 1950s. Today it's the world's largest, with the capacity to produce 100,000 gallons of spirits a day and 21 million cases a year. You can hop on a little tram to take an approximately 45-minute tour of the visitor center, though you don't visit the distillery itself. Yes, you'll be offered a sample. You can reach the factory by taking the ferry from Pier 2 for 50¢ each way and then a público (public van service) from the ferry pier to the factory for about $2 or $3 per person OR you can take the Carnival sponsored tour for 39.99/child or 33.99/child. I would like to note that this is not a highly rated excursion on Carnival's site.
Also, Roll Call member JetBlue stated
"While they gave you two (small) samples they refused to let you into the actual factory and instead showed you around a glorified museum. Definitely don't think this was worth our time." ~JetBlue