10 hour Layover in Heathrow

[O'Callaghan]

I once took the tube to Heathrow when my Algerian friend Ben, who I knew when we were students at uni, was flying home. I believe it took us 45 minutes one way, albeit not from the centre of London, but from Rotherhithe, a lit bit SE of the centre, where I lived at the time, Heathrow being due West of central London. They actually held the plane for him, under the impression that he was some sort of security risk. This is funny because (a) he is quite small and slim; (b) this was long before they got panicked about moslems; and (c) he isn't one anyway.

So, allow 45 minutes each way, but I guess with ten hours that is doable, even allowing ridiculous amounts of time for clearing security when you get back. Also, they have multiple tube stations inside the airport at different terminals, so getting to the right terminal is not a huge problem if you travel that way. The right line is the Piccadilly line, coloured dark blue on the tube maps, although of course in the airport it is the only tube line. South Kensington is on the same line, and there are three museums near that station, Natural History, Science and V&A (Victoria and Albert). If it was me, I wouldn't get any further than that. Do all three of them and you could miss your plane!