There was no guide, just a driver, and after visiting the first attraction in the " tour" and spending there one hour less than we were supposed to spend, we were told that we didn't have enough time to finish our tour, that it was either returning to London, or paying £50/hour in cash, for as long as it took us to visit the other two attractions in the program and return to London. This was not a cheap "tour". It had already cost us around twice the price of the pre-made tours, but we wanted to see everything in one day, and we thought this tour would allow us to do ir. Tripadvisor should do something about this. As you can see in the photos below it says stop at Blenheim palace 3 hours. We spent only two, and the rest is history.