Boasting the longest natural stream system in the Eastern Alps, National Park Kalkalpen is a true haven for nature lovers. The park is home to two different mountain ranges: The Reichraminger Hintergebirge and the Sengsengebirge. There are plenty of trails perfect for hiking, mountain biking, and horseback riding during the summer; many of these become snowshoeing trails and downhill skiing routes during the winter. The park also has several visitor's centers, a lodge built in 1907, and a 21-meter-high view tower that can be accessed by foot or by chairlift and offers wonderful panoramic views of the surrounding area.