Community directory page describing Constantin as shallow, shore-accessible, and rich in marine life.
Shallow wreck and artificial reef in Cala Mateua.
Shallow wreck and artificial reef in Cala Mateua.
Constantin is a shallow wreck site in Cala Mateua that now functions as an artificial reef. The structure is broken into low-relief remains over nearby Posidonia, so the dive feels more like an easy coastal exploration than a full intact wreck tour. It suits divers who want a simple route, good macro life, and an unhurried look at a historically sunk site. Shore access keeps the profile straightforward, but the broken remains call for careful buoyancy and attention to local access rules.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
5m - 19m
Depth Note
Public guides describe the Constantin remains as shallow in Cala Mateua, with wreck fragments around 5-10 m and the wider Illa Mateua area listed to 19 m; another guide reports an average depth of 12 m.
Best Season
Calm sea windows are best, but the site is generally usable year-round for local diving.
Typical Conditions
Shallow Mediterranean wreck remains with Posidonia nearby, easy navigation, and a small-profile coastal setting.
Site conditions, restrictions, and access requirements.
Site Conditions
Safety Notes
Keep buoyancy tight around broken wreck pieces, and treat the site as a shallow non-penetration dive.
Access Restrictions
Confirm current access status before a shore entry and use the designated cove approach.
Legal Notes
Respect local beach and bathing-zone guidance at Cala Mateua.
Community notes to help plan your visit.
Scuba Diving
An easy shallow wreck dive with broken remains, a simple route, and plenty of macro detail.
Freediving
Possible only as a calm-water secondary option; the site is mainly a scuba wreck rather than a freedive target.
Snorkeling
Shallow coastal water can be snorkeled in calm conditions, but the wreck itself is better appreciated underwater.
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 directory page describing Constantin as shallow, shore-accessible, and rich in marine life.
Local dive center page showing guide service, boats, showers, rental gear, and daily departures.
Official beach page naming the Constantin/Cotentin wreck and describing access by car, on foot, and by boat.
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