It’s not as easy being a German naturalist as it used to be. Due to weight issues, more and more clothing has to be taken off or something and that’s become a real pain in the sunburned behind.
And then there are the demographics. Immigrants from Turkey and Arabic countries aren’t interested in “social nudity,” for some strange reason.
Nude sunbathing has a long tradition in Germany. The Free Body Culture (FKK) movement was founded in the early 20th century and succeeded in taking much of the smut and embarrassment out of nudity.

Synchroiscity in posting ideas!
I’m calling it the “dead hippy index”.
Half a million nude Germans is still nothing to sneeze at.