Why is it said that one must visit Weihai in winter

The above photo is the best answer Known as the 'Snow Nest', Shandong Weihai Turns into a fairy tale world once it snows The white snow and swans give this coastal city double the romance 📍Detailed address: Weihai Rongcheng·Chezhugou Large Swan Nature Reserve Navigate to 'Good Luck Middle School', turn left into the small road opposite 🕙Business hours: 05:30-09:00 📝Note tips: Rongcheng has three swan viewing points, namely , we went to the third one this time The gate of this place is clearly written to be open in the morning, but I don't know why the gate was open when I went there in the afternoon that day, so it is recommended that sisters who want to check in should go in the morning There is a small road opposite Good Luck Middle School with the sign 'Hongge Photography Base', drive in and turn left at the end for a few tens of meters to see the gate, the road is slippery after snow, pay attention to safety and don't get stuck in the car~ When taking pictures, you can't get too close to the white swan, it is recommended to bring a telephoto lens, to create the feeling that the swan is right behind you~