Lateral mark in near <a href="https://de.wikipedia.org/wiki/%C3%96velg%C3%B6nne" class="extiw" title="de:Övelgönne">Övelgönne</a> beach in Hamburg 2019
<a href="//commons.wikimedia.org/wiki/User:MB-one" title="User:MB-one">Matti Blume</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>