Xianhai Lake, where you can ride bicycles, there will be a food festival there recently on the National Day, it is comfortable, I will go there on the National Day
Fule Mountain, this park is the one I go to in Mianyang The largest park in the country has some entertainment venues and some snacks, which is pretty good. When the chrysanthemums bloom, a chrysanthemum exhibition will be held. I go there every year
The Shengshui Temple in Mianyang The larger temple has a sleeping Buddha, which is relatively large and worth a visit.
Nanhu BBQ is self-service, and you can also play cards and mahjong there.
In the forest park behind the teacher's college, you can go for a picnic, and cooking utensils can be rented.
These are all places I have been to, and I think they are relatively easy to play. I hope they will be helpful to you.