The layouts created by the Strava app, dedicated to serving as a GPS tool for athletes around the world, provides us as a whole with an immense network of paths. The data is created from the daily use by the users of the Strava App, who incorporate the tracks of their sports outputs. The Big Data sum of all of them results in a heatmap of the most frequent routes. We can get different heatmap depending on the activity: cycling, running, swimming or winter activities.