Help finding a book.

  1. BNW profile image60
    BNWposted 5 years ago

    I am new to the Hub forums so if I do something wrong please let me know. I am looking for a book. It's been driving me crazy.

    Girl goes on vacation with her family summer before college. Meets up with her childhood friend, who's a boy.

    In the book the two teens hadn't seen each other in years, they both are about to go away to college. They decide to try and solve the mystery about the floating lights across the lake. There is also a challenge about swimming the lake that is I believe three miles across. I read this book years ago it would have been published before 1996, so maybe in the 80's to early 90's. If anyone can help that would be great, been looking for it for almost two years now.