From the game description in the rules :

The Rabbit family wants to bake a carrot cake, but first they need some carrots. The most delicious carrots are growing in the garden. Can you help the rabbits gather some carrots ?

Be very careful though! - don't let the farmers see you! On the way, you can hide behind a hedge or under the fence. But if the farmer turns around and sees you, you must run back very quickly to the safety of your burrow and try again later !