In bigger cities like London and Paris, we tend to use Big Bus as a full day program rather than a Hop on Hop Off.
Since my brother is visiting, we are doing touristy stuff with him and since I loved my Big Bus London experience a couple of years ago, I opted for Big Bus again.
Their website is pretty self explanatory and easy to navigate and buy
tickets online (minor discount available for online booking)
red line is the one with live commentary and only in English. If you
need any other of the languages that Big Bus offers, what you want is
the blue line.
The blue line covers all that the red
line does and a slightly longer trip around Hyde Park which is very
useful if you are staying at a hotel in that area or need to get to
Paddington or Victoria stations to catch a train out.
I bought the one day ticket (valid only on that day) rather than the
24 hour one, because we were going to be on the bus by 9 in the morning,
so no chance of using it the next day.
The 48 hour ticket is
better value for money. Plus you get a night ride around the city. But
since we live in London, it didn't make sense for us and my brother had
other plans for the next day.
What I really liked when
booking tickets was that it didn't restrict you to pre-choosing your
date, so you have the option to hold on to your ticket for a slightly
sunnier day if you have time flexibility.
guide for the day was Leanne #bigbusleanne who was AMAZING! Such an
infectious bundle of energy. she gave us an all singing, dancing,
musical experience on the tour. None of the following guides could match
up to her energy and enthusiasm levels.
We then stopped for lunch before hopping on to City Cruises (complimentary with big bus) before we completed the circuit.
Big Bus does offer 3 free walking tours. But it won't be possible to attend all 3 of them and complete a circuit. If you take the 48 hour option, you may be able to do 2 of the tours. Then I would recommend the Royal Walk (to take in the changing of the guard) and the evening ghost walk.
You do get a booklet of vouchers, but I don't see myself using any of those any time soon.