assets.publishing.service.gov.uk · Government
GOV.UK annex referencing Slickstones Quarry, Cromhall as an SSSI.
Dive Spot Guide•
Cromhall Quarry
Freshwater quarry dive with easy training features.
Shore-entry quarry site near Bristol with pontoon access, clear freshwater, and a training-focused layout of platforms and submerged attractions.
About Cromhall Quarry
Cromhall Quarry is an inland training dive in South Gloucestershire with clear freshwater and a compact layout of submerged attractions. Divers move between platforms, vehicles, and quirky objects such as telephone boxes and aircraft pieces rather than following a long natural reef line. The site works well for controlled skills practice and easy shore access, with the main planning issues being cold water and seasonal visibility.
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Research Estimate At Cromhall Quarry
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 10m
AccessSimple entry
Aquatic LifeSome life
FacilitiesGood facilities
Crowd / PopularityQuite busy
CurrentNo current
SurgeFlat calm
Where Is Cromhall Quarry?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
Cromhall Quarry Planning Details
Depth range, seasonality, and planning context.
Reported Depth
1m - 17m
Depth Note
Reported depths run from about 1 m in the shallows to 17 m in the main basin.
Best Season
Late spring through summer for warmer water; winter is colder and spring algae can reduce visibility.
Typical Conditions
Freshwater quarry conditions with little movement, cold winter water, and visibility that can swing with season and algae.
Safety & Access At Cromhall Quarry
Hazards, restrictions, and access requirements.
Key Hazards
Cold waterLow visibilityRestricted access
Safety Notes
Cold water and spring algae blooms are the main watch-outs; keep buoyancy calm around the pontoon, platforms, and submerged objects.
Access Restrictions
Book and pay online before arrival, and follow the pontoon and site-entry rules.
Legal Notes
Cromhall Quarry is an SSSI, so follow the site's conservation guidance and posted rules.
Local Intel For Cromhall Quarry
Community notes to help plan your visit.
Scuba Diving
Inland quarry dive with multiple submerged structures and attractions to explore to a maximum depth of 17 m.
Freediving
Not a freedive target in the usual sense; the site is better for scuba, skills practice, and controlled entries.
Snorkeling
More useful for open-water training and swimming than for a snorkel-first outing.
Recent Logged Visits At Cromhall Quarry
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Cromhall Quarry
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility10m
Activity
No dive activity logged yet.
