We are staying overnight in London post cruise. Our flight leaves out of Gatwick at 3:00pm. We originally planned to stay near the Gatwick Airport, but are having difficulty finding a reasonable tour from Southampton to Gatwick with a stop in Windsor. Our plan was to take the train to Victoria Station from Gatwick anyway to explore the city a bit. We've never been to the UK. If you have experience, can you recommend a tour as noted about and would you stay bear Gatwick or in London and take the train back to Gatwick the next day? Also, what hotels would you recommend? Thanks for your help!