This is just an excellent little happy but not silly book, for the most part.
A teenage girl gets shipped off to a small island in Sweden for a month-long vacation stay with her hippie aunt. Dismayed to find there is no shopping, cell-phone reception, movies, etc., she eventually comes to love the place and begins to grow up. Boy and girl friends help, including a “clean” romance. A few good lessons are learned. Adults are treated as imperfect but not as idiots.
The only bad language is I think one dumbass, an Oh God, a God, and then very unfortunately a Jesus. I am afraid I cannot overlook this. It’s a pity and a bit of a curiosity.