We will be going on a cruise this summer and plan to fly into a day early. We will arrive at Heathrow at about 7 AA, and will probably not be able to check into our hotel (The Sofitel Heathrow) until much later in the day.
Is it possible for a couple of Seniors to do some sightseeing for a few hours and then return to the Hotel for check-in? We prefer not to rent a car for the day.
Any suggestions would be appreciated.