Europe: France, Switzerland, Austria, Poland, free travel, tourist routes.

On the Eurorail network, you can find the sales outlets in some cities in China. There should be some in Beijing. Tickets can be bought in advance according to the itinerary.

You should take Polish Airlines, and then you can fly from Beijing to Warsaw, Paris after the tour, and Zurich after the tour. If you have enough time, you can buy a Swiss Pass to visit Switzerland, then go to Vienna, finally go to Krakow, return to Warsaw and fly back to Beijing. It is recommended that the landlord take a look upstream.