A group family snapshot taken on a beach somewhere in July 1963.
The group seems to consist of a man with his wife, a couple of children and an older lady, presumably his mother or mother-in-law. I can't quite work out if the woman to his right is a child or not. She looks a bit older than the boy, so it's possible that she is a friend or she could be a teenager - teenagers in 1963 dressed very similarly to their parents, unlike today.
This was captured on Kodachrome film, and is a great example of a picture which has stood the test of time.