Open-water training site selected for favorable underwater visibility.
Freshwater quarry near Prague with controlled shore access.
Freshwater quarry near Prague with controlled shore access.
Žernovka - lom is a freshwater quarry dive near Prague with controlled self-service access, a short gear carry from parking, and simple shore entry onto terraced quarry walls. It suits divers who are comfortable planning around cool water, modest visibility, and a quiet inland site without full-service dive facilities or boat logistics.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
0m - 18m
Depth Note
The quarry drops quickly from the entry area to a deeper central basin marked at about 18 m, with terraced walls and a straightforward shore entry.
Best Season
Year-round
Typical Conditions
Cool freshwater, calm water, and modest visibility in a quiet inland quarry setting.
Hazards, restrictions, and access requirements.
Safety Notes
The entry is immediately into deep water, so it is not suitable for complete beginners.
Access Restrictions
Access is controlled by the site operator; expect gate-code or prior-arrangement entry, parking across the road, and a short gear carry.
Legal Notes
Follow the access procedure and pay the daily entry fee before diving.
Community notes to help plan your visit.
Scuba Diving
Best as a shore-based scuba dive or training site for divers who are self-sufficient and comfortable with a quick entry and limited on-site support.
Freediving
Only a fit, experienced freediver should consider it; the site is cold, deep at the entry, and not ideal for leisurely freediving.
Snorkeling
Not a primary snorkel site; it works better for scuba than for casual surface sightseeing.
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
Open-water training site selected for favorable underwater visibility.
Terraced quarry structure, modest visibility, and a pike sighting.
Controlled access, parking across the road, and daily entry fee.
Historic flooded quarry context in the Mukařov area.
Know this site? Improve Spot Details.

Indoor dive basin for training in Čestlice

Shore-access freshwater dive on Slapy reservoir.

Deep Slapy reservoir wreck dive near the dam pier.

Reservoir ropeway dive with a training platform and deeper bay routes.

Freshwater structure dive at Slapy

Bazén Suchdol is an indoor training pool for divers.