Watch the advert and choose the information you haven't heard in it.

• The big bus tour offers you a chance to see all of London's major attractions.
• You can explore the city from the comfort of your own seat.
• Our experienced guides will entertain you.
• Our guides are there to help you.
• You can buy a family ticket which costs 20 pounds.
• Headphones are provided and easily operated with a choice of eight languages plug in.
• Your tour can start at any time and is valid for 24 hours.