Diving atSchnellboot (Malta)
The Schnellboot S-31 wreck holds the compelling story of a German fast motor torpedo boat from World War II. Its fate was sealed on May 10, 1942, when it struck a loose mine, possibly its own, while laying mines near the Grand Harbour of Valletta. This swift, powerful vessel tragically sank, claiming the lives of 13 of its crew, making it a somber war grave off the coast of Malta.
Evening condition tracking at Schnellboot features an air temperature of 13.8°C. We have recorded wave heights measuring 0.64m during this period. These figures outline the environmental parameters currently present.
Dive Site Coordinates
35.8902, 14.5778
Key Dive Site Facts
Dive Site Overview
Discovered in September 2000, the Schnellboot S-31 wreck immediately presented itself as a poignant historical site, resting upright on a sandy and silty seabed. This World War II German torpedo boat, approximately 33 m (108 ft) long with a 5 m (16 ft) beam, demands technical diving skills due to its significant depth, averaging 63 m (207 ft) and reaching a maximum of 66 m (216 ft).
While its original wooden planking has deteriorated over decades underwater, the underlying aluminum frame remains remarkably intact, though the hull shows a distinct break into two sections. This separation allows for glimpses into the internal structure and its preserved components. Divers exploring the stern will find triple propellers, rudders, and three powerful engines still in position.
Towards the bow, the vessel's aggressive capabilities are evident with twin torpedo tubes visible, one notably still containing a torpedo poised for launch, alongside anti-aircraft machine guns. The entire wreck offers a tangible connection to wartime naval engineering, providing a profound, if somber, dive experience.
Best Time to Dive
Optimizing a dive to the Schnellboot S-31 heavily depends on prevailing sea and air conditions. While diving is feasible throughout the year, the period from May to November typically offers the most favorable circumstances. During these months, water temperatures are reportedly between 24-26°C (75-79°F), offering comfort for technical dives. Air temperatures are also pleasant, ranging from an average of 20°C (68°F) in May to 25.6°C (78°F) in September, coupled with notably lower average rainfall, often less than 1.5 mm (0.06 in) per month. These warmer conditions and reduced precipitation, alongside calmer seas with average wave heights dropping significantly from 1.23 m (4 ft) in May to around 0.72 m (2.4 ft) in July and August, contribute to better dive scores and visibility.
Climate Historical Averages
Monthly records compiled from satellite and marine observation nodes over the last 3 years. Data provided by Open-Meteo and MET Norway.
Dive Experience & Conditions
This is strictly a boat dive, designed for technical divers given its considerable depth. Descending to the Schnellboot S-31, which rests at around 65 m (213 ft), offers visibility that can extend up to 30 m (100 ft) on a good day. The wreck lies on a sandy/silty seabed, an environment that demands careful finning to avoid disturbing sediment and compromising visibility. While currents aren't consistently reported as strong at the wreck's depth, conditions can vary depending on local weather patterns, especially wind, which averages lower from June through September at around 18-20 km/h (11-12 mph). Divers might also observe a debris field surrounding the wreck, which reportedly includes rubble and artifacts from nearby excavation sites, adding an unusual layer to the historical exploration.
Dive Difficulty & Safety Guidelines
Diving the Schnellboot S-31 requires technical diver certification due to its depth and the inherent risks of deep wreck diving. Since May 2019, Heritage Malta manages the site, necessitating a special permit for divers wishing to explore this historical wreck. It's crucial to approach this site with the respect due to a war grave, as 13 crew members perished here. Divers must exercise extreme caution regarding potential unexploded ordnance present around the wreck and are strongly advised against touching any part of the vessel, especially the torpedoes, to preserve the site and ensure personal safety.
Recommended Equipment
No verified equipment items yet.
Verified equipment recommendations for this dive site are being reviewed and may be added as additional source checks are completed.
Recommended Dive Suit
Divers planning relaxed exploration may appreciate the warmth of 5mm wetsuit. A thermal robe or jacket is recommended between dives. Divers often notice that perceived temperature can feel cooler during deeper or longer dives.
The waters surrounding Schnellboot are currently maintaining temperatures close to 18°C (64°F). Surface air temperatures are resting at 14°C (57°F).
Temperatures look set to gradually increase over the next several days. A warming trend is expected over the next few days.
Conditions last reviewed: 18:00 using the latest environmental data.
Dive Logistics & Preparation
Hyperbaric Chamber
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Entry Requirements
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Currency
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Marine Life at Schnellboot
The deep environment of the Schnellboot S-31, situated at over 60 meters, creates a specific type of habitat for marine organisms. While direct, specific marine life reports for this particular wreck are limited, such artificial structures in deep water commonly attract and shelter a range of organisms. The intricate metal framework of the former fast torpedo boat now serves as a significant anchor point and refuge. Divers might observe deep-dwelling invertebrates clinging to its surfaces or various schooling fish utilizing the protected spaces within and around the wreck for shelter and foraging. This provides an important micro-ecosystem, especially on an otherwise featureless sandy seabed, drawing in species adapted to these deeper, often cooler, conditions.
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Frequently Asked Questions
What is the Schnellboot S-31?
The Schnellboot S-31 was a German fast motor torpedo boat (S-boot or E-boat) built in 1939. It was part of the German Kriegsmarine during World War II, involved in mine-laying operations and naval engagements.
Where is the Schnellboot S-31 wreck located?
The wreck lies off the coast of Malta, in close proximity to the Grand Harbour of Valletta. It rests on a sandy/silty seabed at approximately 35.8900° N 14.5700° E.
What is the maximum depth of the dive?
The Schnellboot S-31 wreck has an average depth of 63 m (207 ft) and reaches a maximum depth of 66 m (216 ft). This makes it suitable only for technical divers.
What condition is the wreck in today?
The wreck is largely intact, resting upright, though its original wooden planking has rotted away, leaving the metal frame visible. The hull is broken in two, but features like engines, propellers, torpedo tubes (one still loaded), and machine guns are still discernible.
What diver qualification is required to dive the Schnellboot S-31?
Due to its significant depth, diving the Schnellboot S-31 is only suitable for experienced or technical divers. A specialized technical diving certification is a requirement.
Is special permission needed to dive this wreck?
Yes, as of May 1, 2019, the Schnellboot S-31 is managed by Heritage Malta. Divers are required to obtain a special permit before diving this historical wreck.
What kind of marine life can be expected at the Schnellboot S-31?
While specific species are not consistently reported for this deep wreck, artificial structures like the Schnellboot often attract various forms of marine life. Divers may observe deep-water invertebrates or fish seeking shelter within the wreck's framework, typical for such habitats.
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