Hop On/Hop Off Buses

Worth what? The cost or the time it takes to get through traffic?

If you are prepared to sit in traffic and it is your first time in London, I'd say yes. It is a good overview of the city and what you may want to come back to later. I wouldn't do the hop on hop off part unless you know for sure when the next bus will be along. I recommend one full circuit. If cost is your issue look in Rick's books for the bus lines that show you alot of what you want to see or go to the Transport For London website.

I would say during the day absolutely not. However, for a night ride to see the lights it absolutely is worth it but note that those are one way with no stops. I would definitely not take above ground during the day unless you want to just see things. If you want to get from point A to point B quickly then the underground is much better.

HoHo buses are an excellent idea in many cities but London isn't one of them, in my opinion. Traffic levels are such that it can take a long time to complete a circuit. The buses are allowed to pass certain tourist attractions and they cannot use bus lanes like the normal service buses. They can be oversold and you can often have difficulties in getting back on if you decide to hop off.

You are better off using a combination of public transport and walking - much cheaper and you will see more. A river cruise can also be good to see many sights and get your bearings around the city.

I would not use the HOHO bus in London. Traffic is horrendous and they cost a lot of money.

For under $3.00 per person per ride you can take a TFL bus. Many routes go by the major attractions. Following is a taste, but not a comprehensive selection.

Route 11 passes by St. Paul's Cathedral, Trafalgar Square, Big Ben, and Westminster Abbey.

Route 139 takes you past Waterloo Bridge, the South Bank, Trafalgar Square, Piccadilly Circus, Oxford Street, and Regent Street.

For museums and palaces, the number 9 bus is recommended, stopping at St. James's Palace, Clarence House, Kensington Palace, and the London Transport Museum.

Check TFL’s website for more options.