The PokerStars Caribbean Adventure is an annual televised poker tournament. The event was first held in 2004 and was originally co-sponsored by PokerStars and the World Poker Tour. In 2008, the event moved from the WPT to the European Poker Tour. In 2010, the event was moved again and served as the inaugural event of the North American Poker Tour. In 2017 the tournament was the inaugural event of the new PokerStars Championship tour and renamed PokerStars Championship Bahamas. The name was changed back to the PCA for 2018 and the buy-in restored to $10,000.

A poker tournament is a tournament where players compete by playing poker. It can feature as few as two players playing on a single table, and as many as tens of thousands of players playing on thousands of tables. The winner of the tournament is usually the person who wins every poker chip in the game and the others are awarded places based on the time of their elimination. To facilitate this, in most tournaments, blinds rise over the duration of the tournament. Unlike in a ring game, a player's chips in a tournament cannot be cashed out for money and serve only to determine the player's placing.