SSCV Sleipnir is a semi-submersible crane vessel (SSCV) owned and operated by Heerema Marine Contractors. After its completion in 2019, SSCV Sleipnir succeeded Heerema's earlier SSCV Thialf as the largest crane vessel in the world. Both vessels were under maintenance at the Heerema location in Rozenburg.
More information:
Heerema location in Rozenburg. https://www.google.nl/maps/place/Heerema+Rozenburg/@51.9180779,4.229213,15z/data=!4m5!3m4!1s0x47c44d21e3f31985:0x8a67d58719afbea2!8m2!3d51.9254349!4d4.2135116
SSCV Sleipnir:
https://en.wikipedia.org/wiki/SSCV_Sleipnir
SSCV Thialf:
https://en.wikipedia.org/wiki/SSCV_Thialf
Eight-legged horse Sleipnir
https://en.wikipedia.org/wiki/Sleipnir