Our private tour of Stonehenge and Windsor Castle with International Friends was excellent. Booking was straight forward. They responded very quickly to any questions we had, and there was no issue in changing our itinerary (at our request). The van we took was quite comfortable; it was convenient to leave some of our belongings there while we were out and about. The best part of the tour, however, was our tour guide Valentina. She was absolutely amazing - very knowledgeable, engaging, personable, and happy to answer any questions we had. I would absolutely book another tour with International Friends, especially if Valentina could be our guide!!