This dive site, Großer Krämersee in Monheim, Germany, is no longer operational for diving due to the city terminating the use rights previously held by Jürgens-Tauchschule. Historically, it was a shallow freshwater lake primarily used for dive training and recreational diving. Navigation within the lake would have been straightforward due to its limited depth (maximum 7 meters, average 3 meters), likely following natural lakebed contours or submerged training platforms if they existed.
As a freshwater lake, the aquatic life would typically consist of various freshwater fish species such as perch, pike, carp, and eels, along with crustaceans and insect larvae. The lake bed would likely feature aquatic plants like reeds, pondweed, and algae, forming distinct habitats for smaller organisms. However, specific details about the exact flora and fauna present are not provided.
Since diving operations have ceased, there is no best time to visit for diving or freediving. If it were still active, the warmer months would have offered more comfortable water temperatures and potentially better visibility before summer algae blooms. For any potential future use, divers should be aware of cold water conditions typical for German lakes and the lack of official support services.

