NBM Dive Site Resource
U-679
Northern Estonia offshore, Gulf of Finland, Estonia
A Gulf of Finland submarine found by Immi Wallin's Subzone team and documented during a 90-metre dive. Documented extreme-depth technical wreck. The discovering team reported state protection; obtain current heritage-authority and local access guidance. No exact wreck position is inferred from old loss coordinates.
Save this dive site to your free member profile.
Featured Hero Photograph
Aquatic life at this dive site
What divers may encounter
Three reviewed connections are featured here. Sightings vary by season, conditions, and chance, so they are never guaranteed.
Aquatic life research in progress
NBM is reviewing a likely local species for this position.
Aquatic life research in progress
NBM is reviewing a likely local species for this position.
Aquatic life research in progress
NBM is reviewing a likely local species for this position.
Site media
Photographs
Three views rotate from the published gallery on each visit.
Contributor media
Dive videos
Three featured video positions are reserved on every profile.Regional location and nearby land
Location map
Regional overview includes nearby land for orientation. It does not establish a navigation waypoint or an entry location.Map data © OpenStreetMap contributors
Recent field observations
Diver-reported temperatures
Automatically checked observations from dives during the past 14 days. Three reports are visible at a time; scroll for more.A report that passes the automatic checks will appear here with the dive date, diver’s display name, and temperatures at each depth.
Reports are automatically checked for plausible dates, depths, and temperatures. They are observations, not forecasts; confirm conditions before diving.
Why divers know this place
Highlights
Subzone's sonar discovery and underwater documentation connect the wreck with revised loss research.
Shipwreck-only module
The wreck
This section appears only on shipwreck records and brings the vessel, its loss, present condition, access, and responsible wreck-diving considerations into one place.
- Vessel type
- German Type VIIC submarine
- Year built
- 1943 (launched)
- Year sunk
- 1945
- Cause of loss
- Lost on or about 9 January 1945, attributed by revised research to a mine rather than the older attack assessment.
- Present condition
- Subzone's sonar discovery and underwater documentation connect the wreck with revised loss research.
- Penetration guidance
- External wreck context only. This record does not authorize penetration or artifact recovery.
Before you arrive
Access notes
Documented extreme-depth technical wreck. The discovering team reported state protection; obtain current heritage-authority and local access guidance. No exact wreck position is inferred from old loss coordinates. Confirm current access, restrictions, weather, tidal windows and support before planning a visit.
Plan within your training
Conditions and hazards
Extreme depth, decompression, poor bottom visibility, fishing nets, cold water and low-oxygen / hydrogen-sulphide conditions described by the dive team. Respect the memorial wreck and current heritage restrictions.
Independent resource notice
This record is a starting point for independent verification. Access, closures, moorings, weather, currents, depth, visibility, operator availability, and site conditions can change without notice. Confirm current information with the responsible operator, property owner, managing authority, or another qualified local source before planning or attempting a dive.