Lone at Hamburg's Kaiser Wilhelm-Hafen. Looks like they were testing the cranes. As I watched the weight was constantly slowly lowered and pulled up again...
She's Sietas' 2nd newbuilding of type 183, at the time the biggest heavy lift vessels worldwide.

Built by Sietas Shipyard, Hamburg, Germany
Sietas type no. 183
Yard/Hull no. 1280
Status: under construction/to be delivered

Temporary data...
Gt/Nt/Dwt: 15,700 / 4,900 / 12,500
L/B/D (m): 166,80 / 27,50 / 9,00
Speed: 20 knots