Two decommissioned <a href="https://en.wikipedia.org/wiki/Flyvefisken-class_patrol_vessel" class="extiw" title="w:Flyvefisken-class patrol vessel">Flyvefisken-class patrol vessels</a> being towed in the Great Belt
<a href="//commons.wikimedia.org/wiki/User:Eduard47" title="User:Eduard47">Eduard47</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>