Right round the world there’s probably half a million walking tour companies. The price of admission to go on a walking tour won’t break the bank. But the opportunity costs of a walking tour are very expensive. So it’s important to do what the wealthy do as a matter of course – get the best (the poor man always pays twice). In this instance, track down the best walking tour company wherever you are, use their guides. How do you do that? David and Mary – not in their capacity as the London Walks commanding officers but in their capacity as experienced travelers – have put together a checklist that’s a big help in sorting the wheat from the weeds. This podcast is Part 2 – the second instalment – of that checklist.