The board has covered this multiple times. It's from a family boating trip in Italy. There are other adults in the boat - to the right in this cropped pic.
Parent and others do sell children, Anon. Some adults commit unspeakable atrocities on children.
The picture in question, however, was very thoroughly researched here. It shows up every once in a while but it is one of a series of images documenting a family outing.