Zadal, the 11th stop of the ex-Yugoslavia and Austria and Hungary tour. Zadar is an important port in western Croatia and a historic city. It is located in the Adriatic Sea to the west and one of the famous tourist attractions in southeastern Europe. Famous attractions include the Church of St. Donatos, St. Anastasia, the salute to the sun, and the gate of Zadar. In addition, there is a famous sea organ. 35 large organ pipes are hidden under the white stone steps by the sea, and the sea is the bellows. The sea beat and the tides rise and fall will automatically form a pressure change in the organ, and the wonderful music will be generated.