Discover four villages in the region of the Ecrins : LArgentiere -La-Bessée , La Roche de Rame , Vallouise and Pelvoux .
The visitor is guided through their iPhone or iPad that shows the path to follow and the distance of each point of interest. On iPhone, he is alerted by a vibration and a message when it arrives within 50 meters from the nearest point on the course , even when the iPhone is in background or connected to another application.
Vallouise proposes a game to children who can discover the natural elements surrounding them, step by step.
Continued use of GPS running in the background can dramatically decrease battery life.