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.
as Mrs. Walker
as Uncle Jim
as Susan Walker
as John Walker
as Titty Walker
as Roger Walker
as Nancy Blackett
as Peggy Blackett
as Mrs Dixon
as Mr Dixon
as Young Billy
as Old Billy
as Policeman
