HOW DOES IT WORK?
Have you ever seen a sundial? This is also how the sunrose works. But instead of showing the time, the sunrose contains a hidden message that will be revealed at the chosen time.
At the sunrose-location, on the sunrose-date, you can reveal the hidden message by following these steps:
Find the small arrow on the sunrose and point it north.
Wait for the special time.
Fine-tune the direction.