The only way to go to the beach from Tongzhou is Beidaihe, Nandaihe, Gold Coast, Tianjin Tanggu and other places, which are all far enough.

However, in Beijing, there is the Ocean Beach Carnival in Chaoyang Park, the artificial beach in Tuanjie Lake Park, and the Crab Island Artificial Seascape Water Park. These places are all in Chaoyang District and are not too far away.