Here is the GSF Galaxy III under tow by, I think, a Maersk AHTS. The rig was built in 1999 and has legs 560 ft long, which may be the intent of the photograph, since the tops are in the clouds. Indeed, it is necessary for the people arranging for rig moves on the UKCS to communicate with those who promulgate flight information, since they are a hazard for low flying aircraft.

The rig was built in 1999 in Singapore and is part of the Transocean fleet and it is probable that it is cold stacked somewhere. Photo taken by Nigel Sly in 2009 and posted here on 30th January 2017.