This application allows you to validate the Onedoor Trail community routes in the Mecs. The pre-registered remote and settlement mode on www.onedoortrail.com is displayed in the application's challenge menu. Clicking the start button on the selected route will start running or walking. Intermediate checkpoints are enough to just unlock the phone screen lock and start checking. If you are in the right place, you can be successful and you can go further. Finally, when the target returns, the circuit closes and the route is successful.

Optional distances:
- Tubes Trail 12 km / 400 m