On a day trip to the seaside Mum & 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 & buried treasure. But not before her Mum has warned her off the dangers of tar stray dogs & cold water... With the alternative pictures giving both sides of the story children & adults alike will appreciate the humour & observations from this well known children's author.