A deep, inland slate-quarry dive with a shore entry and notable underwater “attr
Lom Šífr - Svobodné Heřmanice is a flooded slate quarry that’s popular for training and exploration dives, with several submerged attractions to find. Divers typically enter from a slate beach and follow fixed lines/routes that lead to points of interest such as the flooded caisson and other placed objects. The site is known for a deep profile and can feel demanding, so plan gas, buoyancy and thermal protection accordingly. Visibility and surface conditions can vary with season, and the water gets very cold as you go deeper.
Depth range, seasonality, and planning context.
Reported Depth
0m - 36m
Depth Note
Reported maximum depth up to 36 m; a shallow platform/ledge is described at 5 m with a guideline; quarry altitude reported around 450 m above sea level.
Typical Conditions
Freshwater quarry conditions with seasonal surface temperature changes and very cold water at depth. Visibility is variable and can be very clear on good days, but may be lower at other times. No tidal influence; conditions are mainly driven by season and activity.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
This quarry is described as not being one of the easiest sites; dive within training and conditions. Water temperature drops sharply with depth and is reported to remain very cold year-round, so use suitable thermal protection. If using the flooded diving caisson, do not breathe ambient air inside; stay on a regulator. Use the in-water line as a reference and maintain good buoyancy to avoid silting and navigation issues.
Access Restrictions
Entry to the parking area and beach is described as free; please respect designated spaces used by divers for gearing up.
Community notes to help plan your visit.
Scuba
Shore entry from the slate beach. A commonly used guideline/route leads divers to attractions such as the flooded diving caisson and other submerged objects (e.g., a well and a telephone booth). A submerged capsule/cabin (Permon) is also described as a point of interest in the quarry.
Freedive
Possible as a freshwater quarry dive, but plan for cold water and limited surface infrastructure beyond basic access; stay in comfortable depths and be mindful of other divers using fixed routes/lines.
Snorkel
The quarry is used as a swimming spot and can be clear, but it is primarily a dive site; stay near the beach/entry area and watch for divers and entry/exit traffic.
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Lom Šífr - Svobodné Heřmanice.
Directional shelter context for incoming swell.
Community dive logs and visit reports for this site.
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Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Lom Šífr - Svobodné Heřmanice | POTÁPĚČSKÉ LOKALITY | Lom Šífr je krásný břidlicový lom nacházející se mezi Opavou a Bruntálem. Přibližně za 50 minut (48 km) se na lom dostanete z Ostravy. | Lom Šífr - Svobodné Heřmanice
Lom Šífr - Svobodné Heřmanice, Severní Morava a Slezsko | Regiontourist.cz | Zatopený břidlicový lom Šífr u obce Svobodné Heřmanice na Bruntálsku na severní Moravě je vyhledávaným koupalištěm. Voda je křišťálově průzračná a užijete si tu klid a pohodu. Místo je též vyhledávanou potápěčskou lokalitou. | Lom Šífr
TREK Severní Morava J&H, 1,75 Díl - lom Šífr - Svobodné Heřmanice - YouTube | srpen 2025
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Freshwater quarry with landmark objects
