The best family-friendly hikes and walks around Bad Nenndorf

The small castle is now a restaurant. It served as a castle, or rather a summer residence for the founder Landgraf Wilhelm I., for just 1 day. Afterwards, the Landgraf had to flee, specifically from the French. From 1808, Jerome Bonaparte settled here and immediately introduced the mud baths in Bad Nenndorf, solely for his personal healing of a rheumatic ailment.

From the edge of the Galgenberg, you can see the three mountain ranges Deister, Süntel, and Bückeberg. The town of Rodenberg, in particular, is very beautiful to see from here.

On the occasion of the LaGa 2026, the Bubikopfallee was extended to the tunnel under the motorway here.

Great view from the Panoramaweg to the south

Great view! Worth stopping!

Currently closed until October 18, 2026, due to the State Garden Show, or accessible after paying the entrance fee.

The Elector's Summer Residence With the creation of the spa park in 1787, Bad Nenndorf became a popular destination for day trips. Landgrave William IX of Hesse-Kassel recognized this potential. Just a few years after the town's development, he commissioned the construction of the Landgrave's House. It was intended to serve as his summer residence. The presence of the future Elector also attracted other prominent guests, giving the town an additional boost. Among the most famous guests, some of whom also stayed at the Landgrave's House, were renowned writers such as Goethe, Schiller, and Herder. However, the Elector was not able to enjoy the Landgrave's House for long. It was not fully completed until 1806. Only a year later, French troops marched into the town and occupied the small palace. Jérôme Bonaparte, the new King of Westphalia, became its new resident. He also introduced mud baths to the town, a spa treatment that is now widely recognized. In 1934, a fire completely destroyed the building. Fortunately, the original building plans from 1791 were still available, allowing the Landgrave's House to be reconstructed almost exactly as it had been. Since then, as before the fire, the building has once again been used as a coffee house. It is also open to the public during set opening hours. Source: https://burgenundschloesser.de/niedersachsen/landgrafenhaus/geschichte.html

It stands in one of the most beautiful spots in Bad Nenndorf's spa park: the small castle – built in 1806 in the Neoclassical style. Initially, the building served as the summer residence of Landgrave Wilhelm I, the future Elector. However, just two years later, King Jérôme moved in. Napoleon's brother subsequently held many lively celebrations here – earning him the nickname "King Merry." From 1866 onward, the rooms served as lodgings for prominent spa guests. In 1891, the facade was given a triangular gable, and the romantic attic rooms disappeared. In the following years, several reading and writing rooms, a library, and a small museum were created on the ground floor. Today, the small castle can be described as a "house for special occasions": Couples can exchange vows in style in the specially furnished wedding room – and then celebrate extensively on-site. The building not only houses a café but also festive rooms that can be rented exclusively. And those who wish can spend truly special nights in the two double rooms or the suite on the upper floor – for example, after readings or classical concerts that regularly take place in the garden hall. Outside the small castle, by the way, stand two old stone bathtubs. They are relics from the 18th century – the time when bathing began in Nenndorf. Allegedly, there were once six such tubs. The whereabouts of the other four, however, remain unknown. Source: https://deister-erleben.de/schloesschen-im-kurpark/