Gas tanker with attendant tug heading up the Thames at Tilbury
<a href="//www.flickr.com/people/22541812@N03" class="extiw" title="flickruser:22541812@N03">Dan Davison</a>
CC BY 2.0
<a href="//commons.wikimedia.org/wiki/Flickr" class="mw-redirect" title="Flickr">Flickr</a>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/22541812@N03/6865966642">Saargas</a>