Hello everyone, how to save money in Haikou?

For accommodation, bring a blanket and moisture-proof pad, and find a park pavilion to sleep<br/><br/>Do you want to drink water, bring an empty bottle, and go to the library or museum to get free water<br/><br/> Do you want to eat, the cheapest food, buy more steamed buns<br/><br/>Do you want to take a bath, go to the beach to take a bath and wash clothes

Air tickets from Changzhi to Haikou are more expensive. It is recommended to go to Zhengzhou first. Air tickets from Zhengzhou to Haikou are cheaper. In addition, Zhengzhou also has a train to Haikou, but the price of the sleeping berth on the train is about the same as that of an air ticket, so it is better to take a plane.