During this festival, 2 towns fight for possession of a sacred image. While citizens of one town cover themselves with black oil and try to reach the Virgin, the others prepare olive oil, eggs, and flour to fight back. The legend says that if a person is able to stay clean, he or she can take the sacred image from the town where it stays.
The idea of this event is to chase a wheel of cheese that’s rolling down a hill. It’s called the most dangerous race since a number of people usually get hurt trying to become the winner. And it’s no surprise, since the cheese is able to reach a speed of about 70 miles per hour.