Explore London with our City Sightseeing Hop-on Hop-off bus tour with over 25 carefully selected tour stops across 2 routes, you will be able to see all the key attractions London has to offer from Tower Bridge to Tower of London, Victoria Embankment, Buckingham Palace, Hyde Park, Marble Arch, Haymarket & Pall Mall East for Trafalgar Square. Audio commentary in 11 languages. Free cancellation up to 24 hours prior to travel. The tour runs all year round (excluding the 25th December). Tour runs from 8.30am to 5.20pm (red route), frequency is every 10-20 minutes. Full loop takes 150 minutes. Green shuttle service runs from 8.55am to 15.55pm, frequency is every 35 minutes, full loop takes 35 minutes. Ticket options - 24HR City Sampler Ticket with Royal London Walk, 24HR Hop-on Hop-off with River Cruise + Royal London Walking Tour. 48HR Hop-on Hop-off with River Cruise + City Pack of 5 Walks.