We went for the short option on the sub. I don't do that well in enclosed spaces.
The tour was given by a gentleman who looked like the picture perfect naval captain with his white roll neck fisherman's sweater matching his white, neatly cropped beard and weather beaten brown face. All he needed was a pipe.
The tour started outside the sub, with an overview of what life would have been like on board and her naval history as a Cold War spy vessel. 69 souls would have been packed on board for months at a time, with water supplies strictly rationed and used from everything from cooking to washing, to flushing the toilets. As our guide explained with a wry smile, the air would have been rather ripe after a few days.