Almost 1,800 square km in size, National Park Hohe Tauern is the oldest and largest national park in Austria and arguably the most impressive. This is where you can find the country's tallest mountains, largest glaciers, and most beautiful forests, and it's also notable for being home to more than half of the animal species found in Austria. There's an excellent network of well-marked trails, and experienced hikers and mountaineers should have no problem exploring the park on their own, but visitors can also take advantage of the wide variety of tours offered by highly qualified park rangers. Kirchplatz 2, 9971 Matrei in Osttirol, +43 6562 40939