Fiesta Nacional de la Vendimia (The Grape Harvest National Festival) takes place annually in Mendoza City, Argentina. It is one of the most important festivals in the country, attracting large numbers of tourists to the region. It is a celebration of wine and the winemaking industry.

Each of the 19 departments in Mendoza Province prepares for the festival in the early months of the year. The main event occurs in the first week of March in Mendoza city, featuring hundreds of dancers and performers, the selection of a "Reina Nacional de la Vendimia" (National Vendimia Queen), and a large fireworks display.

The origins of the vendimia festival date back to the colonial period when Spanish missionaries brought grapevines to Argentina. Over time, the cultivation of grapes and the production of wine became integral parts of the country's economy and culture. The vendimia festival was established in the early 20th century as a way to honor the hard work of the farmers and winemakers and to promote the wine industry.

Today, the vendimia festival is celebrated throughout Argentina, but the largest and most famous event takes place in the province of Mendoza, which is known for its wine production. The festival lasts for several days and includes a variety of cultural and artistic events, including parades, concerts, dance performances, and fireworks displays.

The main event of the Vendimia festival is the "Vía Blanca de las Reinas" or the "White Way of Queens," a parade featuring floats decorated with grapes and flowers that carry the candidates for the "Queen of the Vendimia" title. The parade also includes traditional dancers, musicians, and performers, and it culminates in a grand finale where the queen is crowned.

Another highlight of the vendimia festival is the "Carrusel" or "Carousel," a parade of horse-drawn carriages that travels through the streets of Mendoza. The carriages are decorated with flowers and grapes, and they represent the different regions of the province.

According to algodonfinewines.com; en.wikipedia.org