Somewhat unusually, Portsmouth Harbour station stands on a pier built over the sea. Heavy grade steelwork abounds. The environmental wear and tear must be phenomenal. In this scene, viewed from the adjacent harbour wall on Sunday 15 August 2021, Class 377 EMU no. 377409 of Southern Railway stands at platform one, about to depart as 1S19, the Portsmouth Harbour (1114 hrs) to Brighton service.