Some shipyard relics have been placed at the recently opened western side of the Thompson Graving Dock in Belfast (see J3576 : The Thompson Graving Dock, Belfast). This looks like some machinery parts with a lifebuoy thrown in for good measure, just in case the tourists had any doubt about the maritime connections..
The view behind is to the Outfitting Wharf and Belfast Dry Dock - see J3676 : 'Stena Discovery' at Belfast and J3676 : The 'Torm Rotna' at Belfast - which are still operational.