depart London at 8.00am arrive Stonehenge about 10.00am. Spend about 2 hours there and then lunch in a nice country pub.
Budget for 1 hour for lunch it is about 1 hour 15 minutes to Windsor Castle. About 2.5 hours in Windsor and 1 hour back to London finishing about 6.00pm. This is a popular tour offered by many operators. To avoid worst of lines, we visit Stonehenge first and then Windsor.
Private tour - You and your group will be the only ones on the tour. I drive a very comfortable Mercedes V-class, large enough for 7 passengers. For larger groups a minibus can be arranged (different rate). As a 'Blue Badge' qualified guide, I am permitted to guide within Windsor Castle grounds and St Georges Chapel. Not permitted to guide within the state apartments but audio guide available for that part. Am permitted to guide around Stonehenge.
purchasing tickets in advance will save much time.