This dive site, Tauchbasis Olbasee, is a unique freshwater destination offering diverse underwater exploration. Situated in an old mining area, the lake features intriguing remnants such as rails, a wagon, and underground levels or valleys, providing a historical context to the dives. Navigation is made accessible for newcomers through a half-hour "hiking trail" designed for ease of orientation, while experienced divers can explore deeper sections. Several artificial and historical attractions, including boat wrecks, the remains of a horse-drawn carriage, and an old 5-meter diving tower, create a fascinating underwater landscape.
The Olbasee's ecosystem is home to various freshwater species, with recent observations noting redfish, catfish, and pike among the larger inhabitants. The shallow water zones along the banks are characterized by dense reeds, which serve as crucial habitats for smaller fish and aquatic life. Additionally, old trees submerged in the lake add to the unique biodiversity and visual appeal, offering shelter and foraging grounds for the aquatic fauna.
The dive site is suitable for all levels of divers, from beginners utilizing the shallow areas and structured trails to advanced divers exploring the deeper sections that reportedly reach up to 32 meters. Freedivers will also find the varied depths appealing for breath-hold training and exploration. The best time to visit is typically during the warmer months of summer and early autumn when water temperatures are more comfortable and visibility tends to be at its best, though cold water diving is possible year-round with appropriate dry suit gear. Highlights include the historical mining relics and various wrecks.
