Many visitors come to Badenweiler for the warm mineral springs, with temperatures of 21 °C (70 °F), others for its whey cure, and still others on account of its equable climate and picturesque surroundings. There is a Kurhaus and a park of 15 acres (61,000 m²) containing a historic arboretum (the Staatliche Baderverwaltung Badenweiler), as well as a grand-ducal castle. In 1784, the well-preserved Roman baths [de] were discovered there.