Dive-site profile with current, visibility, and less-experienced-diver notes.
HMS Coriolanus is a popular deep wreck dive in Istria.
HMS Coriolanus is a popular deep wreck dive in Istria.
HMS Coriolanus is a deep wreck dive off Istria that feels like a classic artificial reef. The wreck sits upright on sand and is packed with Northern Adriatic life, with enough structure to give it a surprisingly tropical look. Plan it as a boat-access wreck with real depth, variable visibility, and the discipline to treat the interior like a serious advanced dive.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
15m - 28m
Depth Note
The wreck is commonly described around 15–28m, with the upper part reachable before it drops deeper.
Best Season
Winter usually gives clearer water; summer visibility can be lower.
Typical Conditions
Deep wreck conditions with variable visibility, usually better in winter than summer, and mostly weak but sometimes moderate currents.
Site conditions, restrictions, and access requirements.
Site Conditions
Safety Notes
As a deep wreck, this dive is best planned with appropriate training, gas management, and awareness of enclosed spaces.
Access Restrictions
Boat access only; best for divers comfortable with depth and wreck procedures.
Legal Notes
Respect wreck etiquette and follow any operator rules on penetration or artifact contact.
Community notes to help plan your visit.
Scuba Diving
A deep wreck dive focused on exploring an artificial reef-like structure with abundant marine life.
Freediving
Not a practical freedive target; the wreck is better approached as a scuba site with depth and overhead considerations.
Snorkeling
Not suitable for snorkeling because the wreck sits well below the surface.
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
Dive-site profile with current, visibility, and less-experienced-diver notes.
Independent wreck roundup with depth and marine-life detail for HMS Coriolanus.
Istria wreck guide with depth, seasonality, difficulty, and dive-centre references.
Operator page with max depth, distance from Umag, marine life, and visibility range.
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