When I hiked along the beach between Travemünde and Timmendorf, I saw that many people had put stones over stones. I think it is called stone stacking. I’ve seen this somewhere while I browsed YouTube, but now this trend arrived here too. It’s maybe a good way to test your patience, but I also saw a video of a ranger in Australia, who said that this would be dangerous for certain animals. Parts of our coast are full of these stacked stones, I mean I saw hundreds of these stacked stones. Not sure what is so trendy about it.