THIS CACHE IS NOT AT THE POSTED COORDINATES!
When I was still training to become a geocacher, my studies were concerned with the fascinating field of linguistics. Counter to popular belief, linguistics is not just translation, far from that actually.
Linguistics is the scientific study of language and involves an analysis of language form, language meaning, and language in context. Different weightings of these three aspects create a very diverse scientific environment.
I was studying English linguistics in Germany and 99.9% of my courses were held in English. Most fascinating during all this time was probably a seminar on the differences between the German and English language despite both of them belonging to the Germanic language family. Needless to say they go beyond their different numbers of vowels with the funny German Umlauts ;)
Anyway, now for the puzzle. The cache can be found WITHOUT LEAVING THE SIDEWALK at:
North:
(gerundet Zentral geschlossen) [(ungerundet Vorderseite geschlossen-mid) minus (ungerundet Zentral geschlossen)] Grad
[(ungerundet Vorderseite offen-mid) plus (gerundet Hinterseite offen)]
Punkt
[(gerundet Zentral offen-mid) minus (gerundet Zentral geschlossen-mid)]
[(gerundet Zentral geschlossen) plus (ungerundet Hinterseite geschlossen)]
[(ungerundet Hinterseite offen) minus (ungerundet Vorderseite offen-mid) minus (ungerundet Vorderseite geschlossen-mid)]
West:
(ungerundet Vorderseite geschlossen) (gerundet Hinterseite offen-mid) Grad
[(ungerundet Vorderseite offen) minus (gerundet Hinterseite geschlossen)]
Punkt
[(gerundet Vorderseite offen-mid) minus (ungerundet Hinterseite geschlossen-mid)]
[(gerundet Vorderseite geschlossen) plus (gerundet Zentral geschlossen)]
[(ungerundet Zentral offen-mid) minus (ungerundet Vorderseite geschlossen-mid)]
P.S The labels in this puzzle represent a simplified version. Reality is a lot more gradual but would go too far for a puzzle.