The Little Sisters of the Poor have a summer program for teens. I don’t remember the age limit, but I would recommend that you contact the home closest to you and request information.
You might try the Carmelite Sisters of the Most Sacred Heart in Los Angeles. They have a volunteer group for 13-17 year olds, and they might be able to set something up for your daughter (even if she is older).
Salesian Sisters (technically Daughter’s of Mary Help of Christians) I did a summer when I was 19, it was a great experience! They have convents on the East and West Coasts.
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