Descend on one of mainland Portugal’s most famous wrecks: the WWII U-1277. This advanced dive off Porto delivers hefty history, dense marine life, and a deep, technical profile that rewards experienced divers.
Descend on one of mainland Portugal’s most famous wrecks: the WWII U-1277. This advanced dive off Porto delivers hefty history, dense marine life, and a deep, technical profile that rewards experienced divers.
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Operated by Portugal Dive · Matosinhos, Porto District
Salt spray bites the cheeks as the marina slips away and the Atlantic takes over — the boat hums, the shoreline shrinks, and the horizon becomes a single, breathing blue. Drop through the surface and the U-1277 appears: a dark profile on the sand, its tower still showing welded plates and an exposed periscope that catches whatever light filters down. The wreck sits like a deliberate reef, inviting inspection and holding life.
challenging.
3 hours.
Comfortable basic fitness and the ability to handle cold, longer descents and surface swims; must be relaxed under stress.
Yes — Advanced Open Water (or equivalent) is required due to depth and potential currents; operators will check your certification before boarding.
Typical profiles descend to approximately 30 m, though exact depth varies by target on the wreck and dive plan set by the guide.
You can book a supervised introductory 'try dive' with the operator at a shallower nearby site, but the U-1277 itself is reserved for certified divers.
Visibility ranges from poor to excellent depending on recent weather and plankton; currents can be present—early morning outings usually offer the calmest water.
U-1277 is a WWII-era German submarine that now lies on the northern Portuguese continental shelf; over decades the hull has become an unintended artificial reef.
Follow local dive guidance: avoid touching or entering fragile parts of the wreck, use neutral buoyancy to prevent damage, and don’t remove marine life or artifacts.
Portugal Dive operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.




Book with Portugal Dive
Book directly with Portugal Dive for the best rates and real-time scheduling.
Reserve Now