Residential summer camps in China for teens: any recommendations?

[kookieCrumbles]

Has anyone’s teen been on a residential summer camp in china?
DD wants to go on one next summer, probably for 2 weeks.
Any recommendations of camps that your teens have enjoyed or ones to avoid? She wants to learn a bit of mandarin and experience some cultural actives/ visit sites. She would be travelling alone but using the airport unaccompanied minor service( she’ll be 15yrs old).

I did post this in chat a few mins ago then realised I might get more luck on this board.

Tsinghua university does a summer camp which is quite well known.

Dd didn’t attend the official summer camp but spent a month in the summer at Tsinghua when she was 16yo as part of an exchange and really enjoyed it. Attended lots of classes.

She’s wouldn’t meet the age requirements for that but it’s something to remember for the future, thank you.

I’m thinking something like mandarin zone or ltl language might be more appropriate, it’s just very difficult to find recommendations.