The massive jacket structure of Sea Explorer(Scott Lithgow Yard No 2001) under construction across two shipbuilding berths at Cartsburn Dockyard
Correction and additional information, courtesy of Tom Carreyette
"These are the pontoons and columns for Yard No. 2001, SEA EXPLORER which were later braced together at the top and launched from the two berths as one. See additional comments on previous picture."