There are many fun and delicious places in Yan'an at night. Here are some recommendations:

1. Zaoyuan Park: Zaoyuan Park is a park in Yan'an city. It is here at night There are many citizens walking and dancing in the square, and there are also food stalls and snack bars where you can taste local snacks such as Malatang, kebabs, pancakes, etc.

2. Pagoda Mountain: Pagoda Mountain is an iconic attraction in Yan'an. The night view here is very beautiful. You can take the cable car to the top of Baota Mountain to enjoy the night view of Yan'an city.

3. Yan'an University: Yan'an University is a university with a long history. The campus here is very beautiful at night. You can walk around the campus and feel the atmosphere of university life.

4. Yan'an Night Market: There are many night markets in Yan'an city, which are very lively at night. You can taste local snacks, buy souvenirs, etc.

5. Yan'an Theater: Yan'an Theater is a large performance venue in Yan'an city. There are various performances here at night, such as northern Shaanxi folk songs, dances, dramas, etc., where you can feel the charm of northern Shaanxi culture.

In addition, Yan'an also has many other entertainment venues and food streets, such as KTV, bars, barbecue stalls, etc., which you can choose according to your interests and tastes.