There are quite a lot of tourists from Changchun to Beidaihe every year, and the distance is not very far. If you go to Beidaihe in July and August, it is recommended not to choose Friday and Saturday, because the house price will be higher. If it is in early July or late August, it will be relatively cheaper.
The following are the scenic spots in Beidaihe. You can look it up on the internet according to the name, see what you are interested in and make plans in advance:
Beidaihe: Geziwo Park, Lianfeng Mountain Park, Biluota Bar Park, Princess Cruise, Wildlife Park, New Olympic Underwater World, Strange Garden, Ji Fa Agricultural Sightseeing Park and Olympic Avenue Park.
Shanhaiguan: the first pass in the world, Mengjiangnv Temple, Laolongtou, Yansai Lake and Ledao.
Nandaihe: Xianluo Island, Nandaihe Entertainment Center, Gold Coast Sliding Sand Field and Sand Sculpture World.
Among them, the Olympic Avenue Park, the park near the seaside (depending on which seaside you go to) and the rose garden are free.
If you are interested, you can go to Liu Zhuang Night Market, and the pedestrian street and night view from Tiger Stone Park to Shitang Road Market are quite good.