The direct train to Beihai is a slow train, and there is no air conditioning, so it is very uncomfortable to sit. I suggest you travel like this, leave in the afternoon, take the train from Chengdu to Nanning, the driving time is about 17 o'clock, the hard berth is 285 yuan, and you live on the train at night. Because Chongqing is not the starting point, it is not easy to buy berth tickets at Caiyuanba Railway Station, but it is easy to make up after getting on the bus. It is recommended to bring more food. The food on the train is expensive and unpalatable. Arrive in Nanning in the evening, take a bus to Beihai at the railway station, the fare is 60%- Beihai, a luxury bus, but there is no wc on the bus, it takes about 24 hours to get there directly, and the fare is 550; Trains and planes are from Chengdu to Nanning, not going to Beihai. If you want to transfer, the economy class fare of the plane is about 1000, and the hard seat of the train seems to be less than 200.