A man takes a mud bath at Queen's Beach in Nin, Croatia, July 3, 2019. Mud bath in Nin has a history of centuries as it is believed to have healing effect for some illnesses. (Photo:Xinhua)

A man takes a mud bath at Queen's Beach in Nin, Croatia, July 3, 2019. Mud bath in Nin has a history of centuries as it is believed to have healing effect for some illnesses. (Photo:Xinhua)

People take mud baths at Queen's Beach in Nin, Croatia, July 3, 2019. Mud bath in Nin has a history of centuries as it is believed to have healing effect for some illnesses. (Photo:Xinhua)

People take mud baths at Queen's Beach in Nin, Croatia, July 3, 2019. Mud bath in Nin has a history of centuries as it is believed to have healing effect for some illnesses. (Photo:Xinhua)

A woman takes a mud bath at Queen's Beach in Nin, Croatia, July 3, 2019. Mud bath in Nin has a history of centuries as it is believed to have healing effect for some illnesses. (Photo:Xinhua)

People take mud baths at Queen's Beach in Nin, Croatia, July 3, 2019. Mud bath in Nin has a history of centuries as it is believed to have healing effect for some illnesses. (Photo:Xinhua)