We are three (husband, me and 17-year old son) going on the British Isles cruise next June on the Grandeur of the Seas with my parents. The problem we are having is that RCI does not have triple occupancy rooms for their pre-cruise packages, (so we have to do our pre-cruise stay on our own) which means that we will not have a transfer from Heathrow to Hyde Park and from the hotel in Hyde Park to Harwich. We are taking RCI's air and the pre-cruise package for my parents so we have transfer from the pier to the airport at the end of the cruise and my parents will get all the transfers. RCI will not sell me transfers from the hotel to the port (even though we are staying at the same hotel to be with my parents) - they will sell me from aiport to pier which means I have to get from the hotel back to Heathrow. Can anyone recommend a car service for us in London (thinking we can follow my parent's transportation from airport to hotel and hotel to pier). Thanks.