What is the Harvest Bazaar in Farmville 3?

Excuse me, could you possibly elaborate on the Harvest Bazaar in Farmville 3? I'm curious to know what it entails and how it fits into the overall gameplay. Is it a special event or a recurring feature? What kind of activities or challenges can one expect to encounter there? Additionally, are there any rewards or benefits associated with participating in the Harvest Bazaar? I'm eager to learn more about this aspect of the game.