There are many interesting places in name, but in fact there are very few.
Why don't you take the No.1 bus directly to Chuxiu Garden, a free scenic spot?
Then you can take the No.12 bus to the stop near Jiankang Road, and then turn to No.36 bus to the foot of Bochi Mountain, which is another man-made tourist attraction, free of charge, and the only mountain in Huai 'an city.
You can also take the No.12 bus and get off at the Yellow River Bridge, which is the Peach Blossom Island, a good place for picnic, and also suitable for this weather. The ticket seems to be 1 yuan, and I went to 1 yuan two years ago.
The No.12 I'm talking about is No.12 on Beijing Road. As a Huai teacher, you must know it. It's heading south.
The other one is the Sakura Garden, which is more interesting. The ticket is 1 yuan. It is a water park, but there are still many interesting things. You can take the bus all the way to the junction of Huaihai Road and huanghe road, that is, the stop of the Yellow River Garden Community, and then transfer to the bus No.7 bound for Chengde Road (east). The Fat Cow King near there is very good. I have been there many times, but I still like it very much.
as for other interesting things, I really feel very few, unless you mean KTV and billiards. In that case, there are quite a few things when you go to the city center (you can go all the way to the city center), and the prices are different, depending on your preferences.