On holiday with their mother in the Lake District in 1929 four children are allowed to sail over to the nearby island in their boat Swallow and set up camp for a few days. They soon realise this has been the territory of two other girls who sail the Amazon, and the scene is set for serious rivalry.
Director: Claude Whatham
Director of Photography: Dennis C. Lewiston
Screenplay: David Wood
Producer: Richard Pilbrow
Mrs. Walker
Uncle Jim
Susan Walker
John Walker
Titty Walker
Roger Walker
Nancy Blackett
Peggy Blackett