Double rainbow over the ships <i>Thea B</i> (left) and <i>Marus</i> (right) in Emden
<a href="//commons.wikimedia.org/wiki/User:VileGecko" title="User:VileGecko">VileGecko</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>