Is the Hedong Campus of Tianjin Art Vocational College (near the Crescent River) open? Can outsiders go in?

I don't know, because there are secondary school children in the school, including 12 to 20 students. Therefore, from the perspective of younger students, outsiders are generally not allowed to enter unless someone takes you in, but the playground is always open. If you can get into the school, you can go running in the playground. If you have a good relationship with the doorman, you will usually be allowed in.