This is in London, not in the main center but about halfway out. Many of the original towns and villages still kinda-exist to a certain extent (but obviously the gaps have been filled with urban sprawl) so there are lots of smaller "high streets" dotted throughout, typically near tube stations etc.

£1.85 each ride. So £3.70 round-trip if you can do it in just two rides. There are discounts if you are quick (e.g. you might only pay once) but it is time dependent.

Or just drive directly and quickly with zero hassle for pennies of electricity and free parking in a shopping center.