Scuba Diving at KT-12 Stern

Diving atKT-12 Stern (Italy)

KT-12 Stern in Italy offers advanced divers a compelling wreck experience. It showcases the well-preserved stern section of a WWII Nazi cargo ship, dramatically sunk by a British torpedo. Divers encounter intact structures, including the stern cannon, propeller, and rudder. Immersing yourself here provides a journey into maritime history.

As evening covers KT-12 Stern, the local air temperature is measured at 24.5°C. The current wave height at the surface is recorded at 0.1 m. These late-day readings characterize the surface conditions for the night.

Dive Site Location & Key Facts

Everything you need to know about this dive site.

Max Depth34m / 112ft
Entry Typeboat
Water Typesalt
Dive Types
Wreck

Dive Site Overview

A dive at the KT-12 Stern presents an enduring journey into history, driven by its dramatic past and remarkable preservation. On May 10, 1943, off Marina di Orosei, the British submarine Safari torpedoed this former Nazi armed cargo ship, severing its hull.

Today, the stern section lies largely intact and upright, revealing a poignant glimpse into wartime maritime events. Descending, divers distinctly observe the stern cannon, the ship's massive propeller, and the rudder, all preserved in excellent condition despite decades underwater.

Further exploration uncovers the distinctive tear in the hull from the torpedo impact, a stark visual testament to its sinking. Nearby, cargo holds that once carried armored vehicles reveal their skeletal remains, adding another layer to the wreck's story.

Reaching an average depth of 30 m (98 ft) with a maximum depth of 34-35 m (111-115 ft), accessing the site involves a 35-minute boat ride northeast from Cala Gonone port. Underwater, the sheer scale of the wreck quickly becomes apparent.

Dive duration is typically around 45 minutes, demanding an Advanced Open Water certification for safe exploration of its deeper sections.

KT-12 Stern

Conditions are Good

8/10
Confidence: 8/10
Indicates meteorological model agreement and data availability.

Best Dive Window

Optimal conditions expected

06:12
18:45
H: 10:45
L: 16:20
Air / Sea Temp
24° / 22°
Wave Height
0.5 m
Wind Speed
36 km/h SSW
Rain Chance
0%

Current conditions near KT-12 Stern show 24° air, 22° sea temperature, 0.5 m waves, and 36 km/h wind. Forecast data is refreshed regularly to ensure accuracy.

Radius: ~12km
Updated: Jun 13, 2026, 08:34 local time
MARINE: OPEN-METEOWEATHER: YR.NO

Best Time to Dive

Planning a dive at the KT-12 Stern for the period between June and September usually offers the most comfortable and rewarding experience. During these months, conditions are typically excellent, marked by significantly warmer air temperatures, averaging from 23.5°C (September) to nearly 28°C (July). Minimal rainfall also defines this period, with averages ranging from 0.22 mm (July) to 0.95 mm (June), which contributes to calmer surface conditions. Wave heights during summer typically stay at their lowest, between 0.3 m (August) and 0.5 m (September), ensuring smoother boat access and entry. While October or May can still provide good diving, with air temperatures around 20°C and 19°C respectively, and moderate rainfall, peak summer months present the most favorable combination of weather and sea state for exploring this deep wreck.

PEAK SEASON SCORE

93/100
Excellent

Scores combine air & water temps, waves, wind & rainfall for overall conditions.


BEST MONTHS TO DIVE

JUN
JUL
AUG
DIVE SCORE
(0–100)
68
JAN
77
FEB
75
MAR
79
APR
85
MAY
93
JUN
93
JUL
94
AUG
90
SEP
84
OCT
79
NOV
75
DEC
AIR TEMP (°C)
11
12
13
15
19
24
28
27
23
20
15
12
WAVES (M)
1.0
0.7
0.8
0.6
0.5
0.4
0.4
0.3
0.5
0.6
0.7
0.8
WIND (KM/H)
20
19
19
19
18
16
19
18
18
18
19
18
RAIN (MM)
3.2
1.8
1.9
1.8
2.5
0.9
0.2
0.4
0.9
1.4
1.0
1.7
DIVE SCORE GUIDE (0–100)
Excellent (90–100)
Very Good (80–89)
Good (70–79)
Moderate (50–69)
Poor (30–49)
Not Recommended (0–29)

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

Conditions at the KT-12 Stern require an advanced level of diving proficiency, with the wreck resting at an average depth of 30 m (98 ft) and reaching a maximum depth of 34-35 m (111-115 ft). Visibility here is often exceptional, typically spanning 24-35 m (79-115 ft), which dramatically enhances the wreck's impressive scale. Water temperatures vary seasonally, generally holding between 18-25°C (64-77°F) during warmer months. Wreck structures are largely upright and in very good condition, simplifying navigation and appreciation of key features. Explorers can easily examine the prominent stern cannon, the intact propeller, and the rudder. A dramatic tear in the hull from the torpedo impact provides a direct, tangible link to its historical sinking.

Dive Difficulty & Safety Guidelines

Diving the KT-12 Stern requires a solid foundation in advanced diving techniques. A minimum certification of Advanced Open Water Diver or its equivalent is necessary, and specific training like Deep Diver and Wreck Diver is highly beneficial for navigating this site safely. Given the depth, meticulous dive planning, including gas management and decompression considerations, is paramount. Although the wreck is well-preserved, proper wreck diving protocols should always be followed, especially if considering any internal exploration, even shallow penetration. Divers should always prioritize their training limits and equipment. Consulting with a local dive professional knowledgeable about current site conditions is strongly advised to ensure a safe and enjoyable experience.

Recommended Equipment

Deep dive hazard. Increased narcosis and gas consumption risk.

Overhead / entanglement risk. Wreck penetration requires proper training.

  • Dive Computer
  • DSMB
  • Primary & Backup Lights
  • Wreck Reel
  • Cutting Tool

This gear list is based on verified equipment signals for KT-12 Stern, Italy. Always confirm final gear choices with your dive operator, guide, or liveaboard.

Recommended Dive Suit

3-5mm wetsuit is often considered an appropriate level of exposure protection for conditions like these.

Divers entering the water at KT-12 Stern today can expect temperatures near 22°C (72°F) beneath the surface. Surface air temperatures are resting at 24°C (76°F).

The forecast outlook suggests that temperatures will stay close to current levels.

KT-12 Stern conditions last reviewed: 08:34 local time (UTC+1), Jun 13, 2026

Emergency & Medical Support

Essential information to help you plan your dive trip to KT-12 Stern.

Hyperbaric Chamber

Hyperbaric chambers are a critical part of dive safety infrastructure. Availability varies significantly by region, and not all dive areas have immediate access.

Before diving, it's recommended to:

  • confirm nearest medical facilities
  • check emergency procedures with local dive operators
  • ensure dive insurance covers evacuation if required
24/7 Available

Divers Alert Network

Diving emergency assistance available through DAN Europe.

+39 0642115685
  • 24/7 emergency hotline
  • Diving medical assistance
  • Evacuation coordination
View official DAN emergency contacts

Emergency contacts are provided for reference. Always verify local emergency services before diving.

Closest Listed Hyperbaric Chambers

Showing listed hyperbaric chamber facilities within 200 km of this dive site. Distances are approximate straight-line distances and may not reflect emergency travel time.

+

Ospedale Paolo Merlo - Centro Iperbarico La Maddalena

ICU Capable
La Maddalena, ItalyApprox. 102 km straight-line
Facility Details
Operating Hours
08.00 - 14.00
ICU Capable
Yes
Fully equipped ICU on-site
Chamber Type
Multi - 10 posti Sistemi Iperbarici srl mod. 2300 V
Multi - 10 posti Sistemi Iperbarici srl mod. 2300 V chamber facility
Facility / Hospital
ATS Sardegna - ASSL Olbia
24/7 Listed
No

Information is provided for reference and planning purposes only. Dive Navigator does not verify operational status, staffing, availability, or quality of care at listed facilities. In an emergency, contact local emergency services, DAN, your dive operator, or the chamber directly. Do not travel to a facility without calling ahead.

SourceEUBS / OXYNET

CENTRO IPERBARICO SASSARESE SRL

Sassari, ItalyApprox. 122 km straight-line
Facility Details
Operating Hours
08.00 - 13.00
ICU Capable
No
Chamber Type
MULTI - 12 posti Mod. 2000C Sistemi Iperbarici srl
MULTI - 12 posti Mod. 2000C Sistemi Iperbarici srl chamber facility
Facility / Hospital
OSPEDALE SANTISSIMA ANNUNZIATA AOU SS
24/7 Listed
No

Information is provided for reference and planning purposes only. Dive Navigator does not verify operational status, staffing, availability, or quality of care at listed facilities. In an emergency, contact local emergency services, DAN, your dive operator, or the chamber directly. Do not travel to a facility without calling ahead.

SourceEUBS / OXYNET

Servizio di Medicina Iperbarica "Giancarlo Boero”

24/7 ListedICU Capable
Cagliari, ItalyApprox. 134 km straight-line
Facility Details
Operating Hours
08.00 - 20.00
ICU Capable
Yes
Fully equipped ICU on-site
Chamber Type
2 multiplace chambers - N. 1 Galeazzi 10 posti - N. 1 Sistemi Iperbarici srl mod. 2300V 14 posti
2 multiplace chambers - N. 1 Galeazzi 10 posti - N. 1 Sistemi Iperbarici srl mod. 2300V 14 posti chamber facility
Facility / Hospital
Ospedale Marino, Cagliari.
Emergency Phone
+39 070 6094345
24/7 Emergency Contact
24/7 Listed
Yes
Listed as 24/7 available facility

Information is provided for reference and planning purposes only. Dive Navigator does not verify operational status, staffing, availability, or quality of care at listed facilities. In an emergency, contact local emergency services, DAN, your dive operator, or the chamber directly. Do not travel to a facility without calling ahead.

SourceEUBS / OXYNET
Chamber data is sourced from self-reported EUBS/OXYNET listings and has not been independently verified by Dive Navigator. Always contact local emergency services, DAN, your dive operator, or the facility directly before travelling.
View all in Italy

Marine Life at KT-12 Stern

KT-12 Stern's impressive underwater landscape serves as a vibrant artificial reef, attracting a diverse array of marine species. Large groupers and moray eels are commonly observed making their homes within the wreck's structure. Divers may encounter various species, including camouflaged scorpionfish, elusive lobsters, and intriguing sea cicadas. Schools of sea bass and triggerfish often patrol the wreck, alongside occasional tuna cruising by. Providing habitat for conger eels, it also offers opportunities to spot nudibranchs, adding splashes of color to the metal hulk.

1 / 2
Image contributors:Tim Van Vliet, Bart Braun
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Dive Centers Near KT-12 Stern

Bluforia Diving Center
12 km away

Bluforia Diving Center

4.9| 327 reviews
Today: 08:30 - 13:00 • 15:00 - 19:30
Sun08:30 - 13:00 • 15:00 - 19:30
Mon08:30 - 13:00 • 15:00 - 19:30
Tue08:30 - 13:00 • 15:00 - 19:30
Wed08:30 - 13:00 • 15:00 - 19:30
Thu08:30 - 13:00 • 15:00 - 19:30
Fri08:30 - 13:00 • 15:00 - 19:30
Sat08:30 - 13:00 • 15:00 - 19:30
Orosei Diving Center

Orosei Diving Center

4.8| 63 reviews
8.4 km
Base1 Sardinia

Base1 Sardinia

4.8| 18 reviews
11.6 km
Karibu Diving Center

Karibu Diving Center

4.7| 76 reviews
48.1 km

Nearest Airports

Nearest airports to help plan travel to this dive area.

Olbia Costa Smeralda AirportOLB
66 km
Alghero-Fertilia AirportAHO
128 km
Cagliari Elmas AirportCAG
135 km
💵Currency:EUR

Search Flights

Check available flights and routes on Expedia, using the nearby airports listed in this section.

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Frequently Asked Questions

What is the history of the KT-12 Wreck?

KT-12, a Nazi armed cargo ship, sank on May 10, 1943, off Marina di Orosei. A British submarine, Safari, torpedoed it, severing its hull and creating the diveable stern section.

What are the main features visible on the KT-12 Stern?

Divers clearly see the intact stern cannon, propeller, and rudder, all in good condition. A distinct tear in the hull, caused by the torpedo, is also visible, alongside cargo holds.

What is the maximum depth of the dive site?

Reaching a maximum depth of 34-35 m (111-115 ft), KT-12 Stern has an average depth of about 30 m (98 ft).

What certification level is required for this dive?

A minimum of Advanced Open Water Diver certification or equivalent is required. Additional training such as Deep Diver and Wreck Diver is recommended due to the depth and nature of the site.

What kind of marine life can be seen at the KT-12 Stern?

Large groupers, moray eels, scorpionfish, and lobsters inhabit the wreck. Divers frequently spot sea bass, triggerfish, tuna, and nudibranchs here.

When is the best time to dive the KT-12 Stern?

June to September typically offers the best time for diving, with excellent conditions. Warmer air temperatures, minimal rainfall, and calmer seas enhance the overall dive experience.

What is the typical visibility at the wreck site?

Visibility at KT-12 Stern is generally very good, often ranging from 24-35 m (79-115 ft). This allows for clear views of the extensive wreck and surrounding marine environment.

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