Okay so it was this yellow hardcover book I checked out from my school library. It was about a young girl who went to visit or stay with her dad near water I think? Through the book there’s this little island where the main girl strives to swim to and eventually does at some point. I always remember the words “wish magic” in the title but I’ve never found anything like it online and can’t remember any more details. It was the first like novel I read.
Lost Classics of Teen Lit: Name That Book! 