Carefully read the description below before you start your search for the house of the Eysvogel (Eys-bird).
Take a fully charged AA battery with you, otherwise the Eysvogel will not show up.

The Eysvogel
At the first waypoint you will find a beautiful view over the valley. Right in front of you is the little village of Eys. It will not be a surprise to you, that the Eysvogel sits here regularly on one of the small poles to enjoy the view over his village. As the night falls and the sun sets, he will fly back to his little house.
You can find the location of his house using the sign that is located at this spot. On this sign you will find nine digits. Write these digits down in ascending order. The digits now correspond with ABCDEFGHI.
The house of the Eysvogel is located at:
C[D+E+H]F[C+E][F-C+I]H
[C+E]CIAF[G+D]

PLEASE NOTE: You can not lure the Eysvogel from his house easily. You have to put some energy into it. The bird is known for his buzzing sound when he comes out, so listen carefully for this sound. If you don't hear it, reverse what you are doing. To get the Eysvogel back into his house you'll do the exact opposite of course.

Good luck with finding the house of the Eysvogel and enjoy the view on your way.