"Terry Harper" wrote in message

Sounds like your best bet is to get one-day Travelcards from Stansted.
That
will cover your journey to London and all the travelling around that
evening, on National Rail, London Underground and buses. There may be a
family ticket available. Try the TfL travel planner for that last trip. It
might just be OK, or it might involve night buses.

That sounds the business Terry. Can I find details of such online anywhere?
Finally what is the TfL travel planner and can I find it (whatever it is)
online anywhere?

Ta ... John