The currency in Cuba is different from a lot of places due to there actually being two currencies – the Cuban Peso and the Cuban Convertible Peso. This may sound a little confusing, but the Cuban Convertible Peso is the one most commonly used by tourists, so you only need to worry about that one once you get there. Cuban currency is not traded internationally, so you can only exchange your money once you’re there, so take sterling or Euros with you to do this. Or you could always take a look at the Thomas Cook Cash Passport.