The Solsteinhaus is an alpine hut located at an elevation of 1805 meters on Erlsattel within the Karwendel Nature Reserve in Austria. It can be accessed via Hochzirl and Scharnitz, or through neighboring huts like Nördlinger Hütte and Neue Magedeburgerhütte. Situated on lush alpine meadows at the foot of the Grosse Solstein, the house provides facilities for overnight stays, and hosts events such as weddings, birthdays, and corporate functions, with customizable arrangements and culinary offerings. The hut’s infrastructure includes energy systems powered by solar energy and a combined heat and power plant, along with a material ropeway that supplies the building. Modern amenities were added in recent renovations, and the hut emphasizes environmentally sustainable practices, including water conservation and waste treatment. Surrounded by the natural beauty of the Karwendel mountains, it serves as a base for hiking, mountain climbing, and exploring the region.