When visiting London and you want some respite from the hustle and bustle of the city, I highly recommend a trip out to the Royal Borough of Greenwich, commonly referred to as simply Greenwich. The 4 Royal Museums of Greenwich are definitely worth a visit – National Maritime Museum, Queen’s House, Royal Observatory and Cutty Sark. Visiting all 4 in a day is possible, but I preferred a more relaxed schedule and took 2 days.
As a retired mariner, I was in heaven, but Judi also thoroughly enjoyed her single day, especially the Observatory & Prime Meridian.