16/11/2021, AstiCan shipyard, Las Palmas de Gran Canaria, Spain.

The rubber - reinforced notch, which extended the main deck astern, and was used in her ice-breaking days for extra 'traction' should she herself become stuck in ice, and requiring assistance.
Another icebreaker could slot her bows into the notch and push.

Launched on 03/10/1968, & completed on 08/10/1969 as an icebreaker for Sjöfartsverket (the Swedish Maritime Administration) by Wärtsilä, Helsinki, Finland (389)
4,998 g.t. as:-
'Njord' to 2000 &
'Polar Star' to 2017 &
'Polar S' since.

Converted in 2000 to a passenger & cruise vessel.