Hot springs in Jiangsu and Zhejiang are probably more convenient around Shanghai. I recommend the following: Tangshan Hot Spring in Nanjing, named after the hot spring, has a history of 1500 years. It is a world-famous hot spring resort, one of the four major hot springs in the world, ranking first among the four major hot spring resorts in China. Wuyi Hot Spring in Zhejiang, with a water temperature of 42~45℃ and an output of about 6,000 tons, contains many trace elements beneficial to human health and is known as "the first in Zhejiang and the first in East China". Taizhou radon spring in Wenzhou, Zhejiang Province is an isotonic weakly alkaline chloride-sulfate-sodium radon spring containing iodine, radium, strontium, fluorine, silicon and hydrogen sulfide. The wellhead water temperature reaches 62℃. Hydrogen sulfide can improve skin blood circulation and tissue nutrition, and also kill bacteria and parasites. In terms of invoices, if you stay in a hot spring hotel, you should be able to ask the hotel to issue an ordinary invoice. It's not difficult to spend 6000 yuan, such as Zhang Xiang Huaping in Nanjing. Stay two nights and enjoy the luxury of the hotel. It's definitely no problem to spend more than 6000 yuan:)