Kosterhavet National Park, <a href="https://en.wikipedia.org/wiki/Ursholmen" class="extiw" title="w:Ursholmen">Ursholmen</a> island, Sweden
<a href="//commons.wikimedia.org/wiki/User:PetrVod" title="User:PetrVod">Petr Vodička</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>