NBM Dive Site Resource
U-745
Hanko offshore, Southern Finland offshore, Finland
A missing Baltic submarine whose wreck was documented in a diver-led documentary project. Badewanne documents dives on this wreck. Confirm depth, position, current permissions and specialist support directly before any planning.
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
Diver-investigated Baltic submarine documented alongside U-676 in the discovery film.
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 31 January 1945 south of Hanko, attributed to the Vantaa 3 mine barrage.
- Present condition
- Diver-investigated Baltic submarine documented alongside U-676 in the discovery film.
- Penetration guidance
- External wreck context only. This record does not authorize penetration or artifact recovery.
Before you arrive
Access notes
Badewanne documents dives on this wreck. Confirm depth, position, current permissions and specialist support directly before any planning. Confirm current access, restrictions, weather, tidal windows and support before planning a visit.
Plan within your training
Conditions and hazards
Unconfirmed planning depth, cold dark water, decompression exposure, fishing gear and fragile military grave. Do not infer access or depth from the vessel’s specifications.
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.