The Feria de San Marcos is an annual fair held in Aguascalientes, Mexico, typically from mid-April to early May. It celebrates the patron saint, San Marcos, and features a variety of cultural events, including concerts, traditional dances, and art exhibitions. The fair is known for its vibrant atmosphere and attracts visitors from across the country. In addition to cultural activities, the fair includes a large carnival with rides, games, and food stalls offering local delicacies. The Feria de San Marcos is one of the most important festivals in Mexico, showcasing the region's rich traditions and community spirit.