You are about to start a GPS safari. Before anything else, here are some rules to follow:

Rule n°1 : be discreet when you discover the “treasure”, especially if it is a busy place. This will ensure the lasting of the cache and of the circuit for the next safari adventurers.

Rule n°2 : at each stage, there is a treasure box. Take an object and put one in the box for the other people.

Rule n°3 : in each cache is a “carnet de passage” (road book) on which you can share your feelings with other safari adventurers.

Rule n°4 : before continuing, remember to put the treasure back in its place with its contents, and hide it in the exact place where you found it.

Rule n°5 : back home, don’t forget to let everyone know about your adventure or give any suggestions you may have on how to improve the game.

How to use your GPS…

A GPS (global positioning system) is composed of 24 geosynchronous satellites which allow the user to find his/her bearings from anywhere in the world with precision, whatever the weather conditions may be. Also available on mobile phones, a GPS receiver calculates its position by precisely timing the signals sent by the GPS satellites high above the Earth thanks to a built-in antenna.

Your GPS can locate a point with a precision of 5 to 10 meters, in real-time. 

As it is not bulky, you can carry it in your pocket or wear it on your wrist, depending on the model you choose. You just need to check your progress which  appears on the screen as you go along until you reach the meeting point given by the coordinates you entered in your GPS.

Latitude (north/south) = 47°05.331’

Longitude (east/west) = 006°42.845’

Be careful!

Directions on your GPS are given as the crow flies but you have to follow the existing footpaths. Don’t fall in a river or off cliff just because your GPS told you so! The CDT is not liable for problems which may occur as a result of the misuse of a GPS device.

Useful tips

Some GPS provide blank topographic maps, with a global view of the area and the various existing footpaths. These elements are not essential but they can help you to get better information on what direction to take and on the surrounding places: villages to visit, available access, geography...

Don’t hesitate to refer to a NGI (National Geographic Institute) map or the tourist Doubs' guide book to familiarise yourself with the circuit.