The colorful ceremony that marks the start of the traditional harvest festival in Peru is known as Inti Raymi or the Festival of the Sun. This vibrant event honors the Incan Sun God, Inti, and is celebrated in the city of Cusco. Participants dress in traditional Incan clothing and perform cultural rituals, including offerings and dances, to show gratitude for the annual harvest. The festival typically involves music, dance, and lively processions, attracting many tourists and locals who participate in the colorful festivities, reinforcing the cultural heritage.