My parents are old and want them to go out for a walk. What places are suitable for them to travel?

Saihanba National Forest Park. This is a place that you can't go in any season except winter, because winter is dry and dry. In order to prevent fire, the mountain was closed. The best tourist season is from June to 10. It's midsummer in July and August, and it's still a little hot under direct sunlight, but there is no feeling of heat in the Woods, especially in the morning and evening. If you want to spend the night at the scenic spot, you must take your coat. Saihanba Forest Park and Weichang County are about two cars away. Saihanba Park is connected with Bashang Grassland and belongs to Chengde, Hebei and Inner Mongolia respectively. Tickets for scenic spots can be purchased according to the situation. I didn't know what natural oxygen is until I came here. It is worthy of being the source of water, the hometown of clouds, the world of flowers, the ocean of forests and a paradise for leisure and vacation.