Diving atPecio Mina Mary (Spain)
Among the few wrecks accessible in the Cantabrian Sea, Pecio Mina mary stands out as the only one under 40 m (130 ft) that largely retains its original form. This distinctive merchant ship, now resting on a vast sandy plain, offers an isolated structure that magnetizes marine life. Its presence transforms an otherwise barren seabed into a vibrant, complex habitat for divers to explore.
Evening condition tracking at Pecio Mina Mary features an air temperature of 20.5°C. We have recorded wave heights measuring 0.9 m during this period. These figures outline the environmental parameters currently present.
Dive Site Location & Key Facts
Everything you need to know about this dive site.
Dive Site Overview
The story of Pecio Mina mary begins in 1963, when this merchant vessel suffered a fire while in the port of Bermeo. This incident led to its intentional sinking after being towed clear of the harbor.
Years later, a 1972 attempt to refloat the vessel proved unsuccessful, resulting in the ship breaking cleanly into two distinct sections. Both halves of the wreck now rest on their port sides, settled on a vast sandy bottom between 37 and 40 m (121-131 ft) deep. This significant depth, combined with the wreck's fragmented yet remarkably preserved structure, classifies the dive as challenging, demanding advanced experience and meticulous planning from divers.
Exploring this site often necessitates scheduling two separate dives to fully appreciate each substantial half of the vessel. This approach allows ample time for careful exterior examination and for navigating the accessible interior spaces, such as the engine room.
The surrounding sandy plains offer little in terms of visual reference, meaning the wreck itself is the focal point, attracting most of the marine activity. Divers should anticipate water temperatures typically ranging from 18-24°C (64-75°F) throughout the main diving season.
Navigation around the broken sections requires precise buoyancy control to avoid sediment disturbance and ensure safe passage. The wreck’s isolated nature on the seabed amplifies its role as a concentrated habitat.
Pecio Mina Mary
Conditions are Good
Best Dive Window
07:00 - 14:00
Optimal conditions expected
Current conditions near Pecio Mina Mary show 21° air, 20° sea temperature, 1.2 m waves, and 21 km/h wind. Forecast data is refreshed regularly to ensure accuracy.
Best Time to Dive
Planning a visit to Pecio Mina mary is best aligned with conditions ideal for deeper wreck exploration, which usually fall between May and August. During these months, the dive scores are consistently rated 'Good', with air temperatures averaging from 15.5°C (60°F) in May to 21.5°C (71°F) in August. Wave heights are generally at their lowest, typically below 1.5 meters, contributing to calmer seas and better surface conditions. Wind speeds also decrease, staying around 16-18 km/h (10-11 mph), while rainfall is minimal, often less than 4 mm. These periods provide the most favorable environment for navigating this advanced dive site.
PEAK SEASON SCORE
Scores combine air & water temps, waves, wind & rainfall for overall conditions.
BEST MONTHS TO DIVE
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
Descending towards Pecio Mina mary reveals a unique underwater landscape; a large, coherent wreck split into two distinct sections, both listing to port on a sandy plain. Resting at a maximum depth of 40 m (130 ft), this dive presents a high difficulty level due to its depth and the complexity of exploring a broken vessel. The surrounding sandy bottom provides little visual reference, making the wreck itself the primary feature of the dive. Divers need excellent buoyancy control to navigate its various compartments and avoid disturbing the delicate environment. Visibility, though not consistently reported, can vary depending on local sea conditions, requiring divers to remain spatially aware at all times.
Dive Difficulty & Safety Guidelines
Navigating Pecio Mina mary demands a prepared approach, given its high difficulty rating and significant depth. It's crucial for divers to possess advanced certifications and considerable experience in deep wreck diving. Given the vessel is divided, planning multiple dives is advisable to thoroughly and safely explore both sections. Careful gas management and adherence to no-decompression limits, or proper decompression protocols for technical divers, are paramount. Always dive with a reputable local guide who understands the site's unique characteristics and potential currents. Prioritize buoyancy control, especially when exploring interior sections, to prevent entanglement or sediment disturbance.
Recommended Equipment
Overhead / entanglement risk. Wreck penetration requires proper training.
- Dive Computer
- Primary & Backup Lights
- Wreck Reel
- Cutting Tool
This gear list is based on verified equipment signals for Pecio Mina Mary, Spain. Always confirm final gear choices with your dive operator, guide, or liveaboard.
Recommended Dive Suit
A warming trend is expected over the next few days. A warming trend is expected over the next few days.
Two divers in the same water temperature may experience very different comfort levels.
Many divers find that 5mm wetsuit offers the right level of insulation for conditions like these. Surface intervals may feel cooler. The latest environmental readings for Pecio Mina Mary suggest water temperatures around 20°C (69°F). Surface air temperatures are resting at 21°C (69°F).
Due to technical issues with our weather providers, live updates are temporarily delayed. The data above reflects the conditions at the time of the last successful fetch.
Emergency & Medical Support
Essential information to help you plan your dive trip to Pecio Mina mary.
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
Divers Alert Network
Diving emergency assistance available through DAN Europe.
+39 0642115685- 24/7 emergency hotline
- Diving medical assistance
- Evacuation coordination
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.
UMSHE
24/7 ListedICU CapableSan Sebastian, Spain•Approx. 65 km straight-line
UMSHE
24/7 ListedICU CapableFacility Details
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.
Marine Life at Pecio Mina Mary
What first captures attention at Pecio Mina mary is the sheer density of life attracted to this solitary structure on the sandy seabed. Conger eels, lobsters, octopuses, and sepias are commonly found sheltering within its fractured hull and engine room. Schools of bogas and pout frequently swarm the wreck, alongside sightings of haddock, sparids, and moonfish. Blennies, gorgonians, and anglerfish contribute to the site's biodiversity, providing excellent opportunities for macro photography. On rare occasions, young common minke whales have also been observed visiting the area, adding a truly exceptional dimension.
Dive Centers Near Pecio Mina Mary
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Search Flights on ExpediaFrequently Asked Questions
What kind of dive site is Pecio Mina mary?
Pecio Mina mary is a merchant ship wreck, distinguished as the only one under 40 m (130 ft) in the Cantabrian Sea that largely maintains its shape. It serves as an artificial reef, attracting diverse marine life.
How deep is Pecio Mina mary?
The wreck rests on a sandy bottom at depths ranging from 37 to 40 m (121-131 ft). This depth categorizes it as an advanced dive requiring appropriate certification and experience.
What is the history of the Mina Mary ship?
The Mina Mary was a merchant vessel that caught fire in Bermeo port in 1963. After being towed out and sinking, it later broke into two parts during an unsuccessful refloating attempt in 1972.
Is diving Pecio Mina mary difficult?
Yes, the dive is considered to have a high difficulty level. This is primarily due to its depth, the complexity of a fragmented wreck, and the need for careful navigation.
What marine life can divers expect to see?
The wreck is a haven for marine life, including conger eels, lobsters, octopuses, cuttlefish, and various schooling fish like bogas and pout. Divers might also spot moonfish, gorgonians, and occasionally, common minke whale calves.
How is the wreck structured underwater?
The Mina Mary wreck is split into two distinct halves, both resting on their port sides. This unique configuration necessitates planning to explore each section thoroughly, often requiring two separate dives.
What are the typical water temperatures?
Water temperatures at Pecio Mina mary typically range between 18-24°C (64-75°F). This warmth is generally present during the peak diving season.
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Pecio Mina Mary
Conditions are Good
Best Dive Window
07:00 - 14:00
Optimal conditions expected
Current conditions near Pecio Mina Mary show 21° air, 20° sea temperature, 1.2 m waves, and 21 km/h wind. Forecast data is refreshed regularly to ensure accuracy.