Community dive note with max depth, visibility, current, and access points.
Freshwater park-lake shore dive with strict access
Freshwater park-lake shore dive with strict access
Heiliger See is a freshwater park lake in Potsdam's New Garden and a controlled shore dive with a strict daily quota. The route starts over sand and shells, then turns silty below the shallow shelf, so steady trim matters more than speed. Visibility can swing sharply with season and wind, and the site is best treated as a calm, methodical freshwater dive. Expect common fish rather than reef life.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
3m - 12.8m
Depth Note
Sandy shell bottom over a shallow shelf, then silty sediment below about 3 m; published max depth is about 12.8 m.
Best Season
late spring and early autumn
Typical Conditions
Visibility varies by season and is reported around 0.5–4 m. Sandy bottom with shells, with silty sediment from about 3 m depth.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Daily diver numbers are limited and prior registration is required. Visibility can be very low depending on season.
Access Restrictions
Diving is limited to 10 divers per day and requires prior registration.
Legal Notes
The lake is under the management of the Prussian Palaces and Gardens Foundation Potsdam (New Garden).
Community notes to help plan your visit.
Scuba Diving
Suitable as a straightforward freshwater scuba dive with variable visibility and silty conditions below ~3 m.
Freediving
Not a primary freedive site; use it only for short, shallow, calm-water sessions because visibility and silt can deteriorate quickly.
Snorkeling
Short near-shore snorkel sessions are possible, but the site is better for calm observation than for long swims once the water turns murky.
Species commonly reported at this site, with direct links into their wildlife guides.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Community dive note with max depth, visibility, current, and access points.
Trip report with permit workflow, entry point, and seasonal planning note.
Official city park-lake context and public access limits.
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