London Bus Tours Looking for a hop-on hop-off bus tour of London? Look no further, we have hop-on hop-off package deals, open top bus tours for 1 day or 48 hours and much more to choose from including free walking tours. From Buckingham Palace to Westminster Abbey, the London Eye to Big Ben, you’ll get to see them all and you can even try our London sightseeing packages. We are offer open top bus tours of London, many with a live English speaking tour guide. They are a great way to explore London with you setting your own itinerary.