You hold the solution on your treasure map. Less and less plastic is found in the port of Rotterdam every year because people and companies are better at treating the environment.
But how can you keep this overview so that you always know where you can see plastic floating from the air in the port of Rotterdam?
Do you already know the answer to the rebus? Then you can choose the right answer and defeat the blubber monster! The Augmented Reality only works if you are near this location. Are you too far away? Then you can get closer with 'normal' Google navigation.
Did you know?
If you have completed the treasure map correctly, you can hand it in at the Maritime Museum and receive a prize to commemorate your battle against the Blubber Monster.
