Yesterday I took my pedometer with me. I covered 14,117 steps which equates to 5.75 miles, approximately 9 kilometers and, apparently, 355 additional calories to my standard daily burn. I always find the number of calories a sobering reminder not to eat that opportunistic Mars Bar!

As the event organiser I tend to cover more distance than the participants as I have to set it all up and visit all of the characters in their places. Most teams don’t cover the whole route and spend a lot of time planning and looking for clues.

My Paris Treasure Hunt covers just over 5 km and this is about right for an area where there is so much to see and do and also taking into account the varied fitness levels of average participants. The last thing you want is to make it feel like a chore. The other thing to take into account is that teams will want to stop a few times at pubs and bars on the route.

So, my advice for a three hour Treasure Hunt is 5 or 6 kilometres of walking.