On a day trip to the seaside Mum and Dad settle down in their deckchairs to snooze the day away while for Shirley it is a chance to set sail for uncharted seas, adventure and buried treasure. But not before her Mum has warned her off the dangers of tar, stray dogs and cold water. . . . With the alternative pictures giving both sides of the story, children and adults alike will appreciate the humour and observations from this well known children's author.