Common periwinkles (<i>Littorina littorea</i>) on a vertical cliff in Gullmarn fjord at Sämstad, Lysekil Municipality, Sweden. The red granite cliff is covered with red algae (<i>Hildenbrandia</i>). The image is focus stacked from six photos.
<a href="//commons.wikimedia.org/wiki/User:W.carter" title="User:W.carter">W.carter</a>
2019-07-13 09:38:45
<span class="int-own-work" lang="en">Own work</span>