Decathlon Outdoor is a free, easy-to-use app and outdoor route-planning service for people who enjoy hiking and cycling. It helps users discover trails suited to different fitness levels and motivations, from relaxed family walks to demanding athletic outings. Its catalog features thousands of routes shared and rated by the community, with routes also reviewed by a team of experts. Users can search for an itinerary, plan an outing, and explore recommendations through the app.

The service showcases trails across Europe, including routes in France, Italy, Spain, Switzerland, Portugal, the Netherlands, Germany, the United Kingdom, Belgium, and Poland. Its listings include practical details such as distance, estimated duration, difficulty, activity type, and community ratings. Examples range from mountain hikes and coastal walks to lakeside routes and cycling paths. Decathlon Outdoor encourages users to explore landscapes at their own pace, whether close to home or farther afield, and offers route inspiration for both walkers and cyclists. The app is presented as an accessible way to find and plan outdoor adventures.