09:00~21:00 According to the official public number of Lianyungang seaside bathing beach, the opening time of Lianyungang seaside bathing beach is from 09:00 in the morning to 21:00 in the evening.Liandao seaside bathing beach is the largest natural high-quality seaside bathing beach in Jiangsu Province, which is also known as Suma Bay. It is mainly composed of two parts: Dashawan Bath and Suma Bay Bath. The bay is a collection of mountains, sea, forests, rocks, beaches and humanistic landscapes in one.