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ShipwreckSource Checked

NBM Dive Site Resource

SM UC-71 wreck

Helgoland, Schleswig-Holstein, Germany

Sank during the surrender voyage off Helgoland. Propeller markings and scientific dives document the protected wreck.

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Featured Hero Photograph

Class reference: SM UC-44 after recovery into British custody, 1917–18. This photograph does not depict SM UC-71.
Class reference: SM UC-44 after recovery into British custody, 1917–18. This photograph does not depict SM UC-71.Underwood & Underwood / U.S. National Archives, 165-WW-330C-20, identifier 45511792 · Public domain — https://creativecommons.org/publicdomain/mark/1.0/Source ↗
WaterMarine
AccessProtected or restricted archaeological site
ExperienceConfirm depth, conditions and permitted access with qualified local support.
Maximum depthDepth pending
Best seasonSeasonal details pending
VisibilityVisibility varies

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.

Profile connection reserved

Aquatic life research in progress

NBM is reviewing a likely local species for this position.

Profile connection reserved

Aquatic life research in progress

NBM is reviewing a likely local species for this position.

Profile connection reserved

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.
Illustrated scuba diver reserved for a future dive-site photograph
Dive Photograph PlaceholderDive-site photograph pending
Illustrated scuba diver reserved for a future dive-site photograph
Dive Photograph PlaceholderDive-site photograph pending
Illustrated scuba diver reserved for a future dive-site photograph
Dive Photograph PlaceholderDive-site photograph pending

Contributor media

Dive videos

Three featured video positions are reserved on every profile.
Dive-site video pending
Dive-site video pending
Dive-site video pending

Regional location and nearby land

Location map

Regional view for orientation. The documented wreck or survey is described in the linked research.
Map areaHelgoland, Germany
Open regional map ↗
Map zoom level 6 of 11

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.
Automatically checked
No recent diver reports from the past 14 days

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.

Diver field observation

Report temperatures

Reports publish automatically when the date, depths, and temperatures pass the checks. You must be signed in to submit.

Depth readings

Why divers know this place

Highlights

Sank during the surrender voyage off Helgoland. Propeller markings and scientific dives document the protected wreck.

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 World War I Type UC II minelayer
Year sunk
1919
Cause of loss
Sank during the surrender voyage off Helgoland. Propeller markings and scientific dives document the protected wreck.

Before you arrive

Access notes

Propeller markings and scientific dives document the identity. The wreck is a protected monument. Consult the responsible authority about access. Check present access with the responsible authority and respect the wreck and any remains.

Plan within your training

Conditions and hazards

Weather, currents and tidal access, depth and decompression exposure where applicable, low or changing visibility, entanglement, unstable or damaged metal and possible ordnance. Do not disturb remains or remove objects.

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.