The Waldhotel National was opened at the end of the 19th century as a nursing center and sanatorium in Arosa. In the year 1910 it became a hospital for lung patients. One of the most famous guests of that time was the writer Thomas Mann. It was there where he began to write the famous "Zauberberg".
From 1938-1954 the "Waldhaus" was used as a military base hospital for the Swiss Confederation. In the year 1962 the Waldhotel was for the first time run as real profit centre. In 1982 the enterprise was converted into a corporation and since 1992 the majority of the shares have been in the possession of Mr. Andy Abplanalp.