What is a one-sentence summary of the following article?
On December 28th, also known as Holy Innocents’ Day, many people play jokes on others. It’s equivalent to April Fools Day in the United States. On top of playing pranks on one another, many cities have their own special festivals.  Visit Jalance for the Fiesta de los Locos, or Crazy People’s Dance. Ibi holds a Flour Battle, or Els Enfarinats Festival throughout the day. Celebrated on January 5th, towns across the country hold parties and parades to commemorate the arrival of the Three Kings the following day. Spend the night in Madrid or Barcelona to see parades with massive floats. Children expect larger gifts from the Three Kings overnight, so they often leave their shoes on windowsills or balconies to be filled with presents. Children wake up on January 6th and open the presents that the Three Kings brought them. Exchange gifts throughout the day. Afterward, have a large feast to celebrate. Enjoy a Roscón de Reyes, a ring-shaped fruit cake with a figurine baked inside. Whoever finds the figurine becomes the king of the day!

Summary:
Play pranks on one another on Dia de Los Santos Inocentes. Go to a parade on the eve of Epiphany. Give large gifts to one another on Three Kings’ Day.