That's Portsmouth....
C-bert - the
RN thinks FOST is in Plymouth, and while I know that navigation and positioning is not my old employer's strongest suit, I'm inclined to believe them this time. In the good old days it was in Portland (Dorset, not Oregon), but that was when we had a navy, not a coastal defence force.
And yes, I know that the shot is of Portsmouth. My old Dad lived literally round the corner from that boozer.