If Siyang is in the south of northern Jiangsu, take Yansuwei to Huai 'an, transfer to Ninglian to Nanjing, cross the third bridge and go straight. If it is in the north, then go directly to Nanjing from the expressway in the north of Hongze Lake, and also go straight over the Third Bridge, and then take the Hangning Expressway. It is more than 500 kilometers from Likou Toll Station in Siyang to Nanzhuangdou Toll Station in Hangzhou. If a novice drives alone, he can stop at the service area several times, and there are roads in Jiangsu section. I am used to running long distances twice.