Vacation. Lianyungang is a famous historical and cultural city in Jiangsu Province, and also a city applying for the Maritime Silk Road, with a history of more than 2,200 years. Lianyungang 2022 National Day Holiday Notice Lianyungang Middle School will have a three-day National Day Holiday, 10/day to 3 days. Lianyungang Middle School is located in Lianyun District, Lianyungang City, Jiangsu Province.