The lake was formed as part of the Überleitung Donau-Altmühl project, a major water engineering feat in Germany.
The MS Brombachsee is a unique trimaran vessel that features a glass-walled lift and a split-level design to navigate the lake.
The water level is actively regulated to ensure the Rednitz and Regnitz river valleys remain supplied during dry seasons.
Underwater, the lake covers the former village of Igelsbach, which was relocated during the construction of the dam.
The dam wall at the Big Brombachsee is over 1.7 kilometers long and reaches a height of up to 38 meters.
Swimming is permitted in designated zones, while the central lake area is reserved for water sports like sailing and windsurfing.
Brombachsee is the largest reservoir in the Franconian Lake District, created through an artificial damming project in the 1970s and 80s to regulate water distribution in Bavaria. It is divided into three distinct basins: the Big Brombachsee, the Small Brombachsee, and the Igelsbachsee. The Big Brombachsee is the main body of water and is restricted to non-motorized and sailing vessels to prioritize ecological and recreational quality. The surrounding landscape features a mix of sandy beaches, dense forests, and paved perimeter paths used for cycling and skating. A unique feature is the trimaran MS Brombachsee, which serves as a floating venue for events and transport. The area functions as a central water management component for the Main-Danube Canal region, balancing the water needs of northern and southern Bavaria. Recreational facilities are distributed among several small lakeside communities like Pleinfeld, Absberg, and Spalt.
The elevated lookout points along the dam wall between the Big and Small Brombachsee.
Rent a bicycle to navigate the 12-kilometer path surrounding the Big Brombachsee, as distances between swimming bays are significant.
Check the wind conditions on the lake's website if you plan on stand-up paddling, as the basin can get choppy.
Bring water shoes, as some swimming areas have pebbly rather than sandy lake beds.
Attempting to drive directly to the water's edge at non-designated spots; use the established public parking facilities near the lake access points.
The trimaran cruise service operates only from April through October; ice and winter conditions may limit access to specific paths.
Respect designated nature conservation zones where swimming and water craft are strictly prohibited.