Puzzle location 1
A tempting duck trap...
...was the capture facility built in 1874. But in 1935, due to a lack of ducks, it ceased operations.
The reason for this was the ever-increasing number of bathers, an island railway that picked up more visitors from Hörnum and the shooting practice of the soldiers in the wars of 1864 and 1914.
To the riddle:
We placed the riddle at the entrance to the bird's berth, because when the bird's berth is closed, you should not enter the berth for safety reasons.
On the sign under the mailbox, the 2nd letter on the security service provider's sign has been replaced with a sign.
Find this sign on one of your playing cards and enter the solution card.