Aach: Karst Spring, Old Town and Hiking Trails

Aach combines a striking karst spring, a historic old town on a steep hilltop and trails with views of the town and surrounding landscape. Nature, local history and hiking offer different ways to shape your stay. If you’re looking for accommodation for your trip to Aach, you can start by considering which of these aspects you’d most like to focus on.

The Aachtopf and the Karst Landscape

The Aachtopf, Germany’s most powerful karst spring, is located near Aach. Its discharge is the volume of water released by a spring; here, it is a striking geological feature of the area. The large sinkholes in the limestone offer another perspective on the karst landscape. Sinkholes are funnel-shaped depressions in the terrain. Along the Aacher Geißbock hiking trail, they are directly connected to the underground cave system of the Aach spring. The spring, rock and landforms can thus be viewed as parts of a single natural landscape.

Old Town, Views and Historic Traces

Aach’s historic old town sits on a steep hilltop and is fortified with town walls and a gate tower. A walk up to the old town offers views across Aach, down the Aach Valley as far as Friedinger Schlößle, and over the Hegau landscape. The route connects views of the town with vistas across the valley and surrounding countryside. Those interested in historic traces can also find a preserved high court stone on the northern edge of Aach town forest, near the area known as “Prälatenhau”.

Trails with Different Highlights

The historic trail in Aach has 13 stops, including the Aach spring. The Aacher Geißbock circular hike also starts at the Aach spring and climbs to the northern edge of Aach’s town hill. The hiking trail descends on narrow paths through large sinkholes in the limestone and passes the Old Tower of Aach. The two routes offer different highlights: the historic trail features a set of designated stops, while the Aacher Geißbock focuses on the circular hike, landforms and the Old Tower. The steep hilltop, the climb to the northern edge of Aach’s town hill and the narrow paths descending through sinkholes give you a sense of the terrain.

A Broader Regional Perspective on Konstanz

The broader travel destination of Konstanz offers another perspective on nature and outdoor activities. The well-marked, 53-kilometre SeeGang premium hiking trail connects Überlingen and Konstanz and runs through the Lake Constance district and the district of Konstanz. The RadgenussRouten cycle routes around Western Lake Constance pass through the most beautiful landscapes in the district of Konstanz and combine nature, culture and local highlights. These are distinct regional themes alongside the trails and historic experiences that define Aach.

For overnight guests in the broader travel destination of Konstanz, the BODENSEECARD WEST may also be useful: guests receive it when checking in at one of 14 participating towns. It is valid for free travel throughout the district of Konstanz as far as Stein am Rhein and Überlingen, offers a 20% discount on Untersee boat trips and reduced admission to museums. Check which towns are participating before your trip.

Plan Your Stay in Aach

These highlights provide a practical starting point for choosing where to stay.

Discover More Destinations

Discover more destinations: Gaienhofen, Hilzingen, Singen, Konstanz, Orsingen-Nenzingen, Rielasingen-Worblingen, Eigeltingen, Hohenfels.

Back to the main travel overview: Konstanz.