Erlebnis Nationalpark is an Android app designed to help tourists explore the largest nature reserve in the Alps, the Nationalpark Hohe Tauern, covering an area of 1856 km2. With 266 peaks over 3000 meters, 130 km2 of glaciers, and 550 lakes, the app provides a detailed topographic map of the entire region and updated routes for hikers, bikers, and skiers. It also offers information about viewpoints, huts, restaurants, and leisure facilities. The app provides key facts, including length, elevation, duration, and difficulty level, and a comprehensive description of each tour with pictures, route maps, and elevation profiles. The app also allows offline storage of tours and maps, making it convenient to use in remote areas. The app is an excellent tool for families, hikers, and climbers who want to experience Austria's largest national park.