The Danube on Fire Festival is one of the biggest summer events along the Danube in Bulgaria. It celebrates a week on the river, during which a wide variety of cultural and sport events take place. On the last day, a traditional "Celebration on the River" is held, including numerous competitions with fishing boats, swimming across the Danube and a culinary competition for the most delicious fish soup. The festive days end with rock concerts and a Danube on Fire Show featuring lights and fire by the river bank.