I have features this craft before, more than once on the sites, but I can't help returning to it because it is an amazing marine craft. It is the biggest of the Heerema heavy lift vessels. I have been in a dry dock with a 42,000 ton semi-submersible but it was dwarfed by the Balder, a smaller Heerema vessel behind it. The Thialf can lift up to 14,000 tons using the big hooks on both cranes. 

The photograph was taken by Paul Moar when it called in at the Shetland Islands back in 2013

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