Our rendez-vous was at Creswell Crags on the Derbyshire/Nottinghamshire borders, where Sir David was opening a new museum and visitors centre dedicated to the Ice Age rock art that makes the Crags a centre for archaeology in the UK.
But enough of the caves. What everyone wants to know is what Sir David thinks about the world of travel. Here's a snippet of the interview, the full text of which will be published in the Daily Express next weekend.
'Of course tourism has to be controlled because it can get out of hand and destroy things. But, by and large, it's essential for anyone in conservation to learn to work with tourism for the greater good.'
Do you agree with Sir David? And would would you like to have asked him? Leave your comments below.