Diving atInner Mulberry Harbour (United Kingdom)
Diving Inner Mulberry Harbour means directly engaging with a piece of D-Day history. A small Mulberry Harbour component, likely an Intermediate Pier Head Pontoon, awaits exploration within easy reach of the shore. It dries at low water, its position just 100 meters / 330 feet offshore clearly marked by a tall red can buoy.
Tonight's objective overview for Inner Mulberry Harbour shows an air temperature of 14°C. The measured surface conditions include wave heights around 0.9 m. This environmental data is logged for the close of the day.
Dive Site Location & Key Facts
Everything you need to know about this dive site.
Dive Site Overview
Navigating this site offers a fascinating exploration of a historical structure in a shallow marine environment. Inner Mulberry Harbour is a distinctive shore-accessible dive, allowing for direct entry from the beach.
This particular component, a section of the temporary Mulberry Harbour used during the Normandy landings, lies approximately 100 meters from the shore and becomes fully visible as tides recede. Its artificial structure, a blend of historical wreck and thriving reef, creates an essential habitat for diverse marine species, with the surrounding seabed providing further exploratory avenues.
Divers will find the maximum depth consistently reported at roughly 5 meters, an ideal profile for new divers or those desiring extended bottom times on a historical wreck. Local conditions typically feature cooler water, ranging from 11-17°C / 52-63°F depending on the season, peaking at the higher end during summer months.
Visibility here is influenced significantly by tidal movements and recent weather patterns, frequently ranging from 3 to 8 meters. Tidal currents are a key consideration, often dictating dive planning around slack water to ensure optimal conditions.
Despite its accessibility, the site retains an engaging character, rewarding attentive divers with both historical insight and temperate marine observations. Expect to encounter typical English Channel clarity, which can vary day to day.
Inner Mulberry Harbour
Conditions are Excellent
Best Dive Window
07:00 - 14:00
Optimal conditions expected
Current conditions near Inner Mulberry Harbour show 14° air, 15° sea temperature, 0.4 m waves, and 14 km/h wind. Forecast data is refreshed regularly to ensure accuracy.
Best Time to Dive
For optimal visibility, timing your dive around the 3-hour mark after high tide is generally recommended. While specific visibility reports for Inner Mulberry Harbour vary, regional conditions can see visibility up to 8-10 meters / 26-33 feet, particularly on calmer days. The warmer months, from May through September, present the most favorable diving conditions. Air temperatures during this period range from approximately 13.5°C / 56°F to 18°C / 64°F, with average rainfall typically lower, around 1.4-3.7 mm per month. This combination generally contributes to a 'Good' dive score, allowing for more comfortable surface intervals and potentially clearer water. Conditions during early spring (March-April) and late autumn (October-November) are still considered 'Good' to 'Moderate', but with cooler air temperatures.
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
A dive here generally provides a highly accessible shore experience, welcoming divers across various certification levels, including those undertaking PADI Advanced Open Water Diver training. Its consistently shallow profile, typically around 5 meters, makes it an excellent choice for instructional purposes or enjoying extended bottom times. Regional currents are a notable factor; many local dives, including nearby locations, are frequently scheduled around slack water, often 4 hours before high tide or 3 hours after. Water conditions are characteristic saltwater, typical of this coastal stretch. Divers anticipate English Channel visibility, which fluctuates based on recent weather and tidal movements. Successfully navigating this environment rewards attention to buoyancy, particularly around the historical structure and its marine growth.
Dive Difficulty & Safety Guidelines
Because the Inner Mulberry Harbour structure dries at low water, meticulous tide planning is critical for a safe and enjoyable dive. Divers must always understand the tidal cycle for entry, exit, and their underwater duration. For local area dives, deploying a Surface Marker Buoy (SMB) consistently is recommended due to possible lifeboat and fishing vessel traffic. No specific inherent hazards are reported directly for the site; however, general safe diving practices, including diligent dive computer use and strict adherence to no-decompression limits, remain paramount. Engaging with local dive centers for the latest conditions and site-specific guidance is always a prudent step.
Recommended Equipment
Overhead / entanglement risk. Wreck penetration requires proper training.
- Dive Computer
- Primary & Backup Lights
- Wreck Reel
- Cutting Tool
- Hard-soled Dive Boots
This gear list is based on verified equipment signals for Inner Mulberry Harbour, United Kingdom. Always confirm final gear choices with your dive operator, guide, or liveaboard.
Recommended Dive Suit
According to recent observations, water temperatures near Inner Mulberry Harbour are approximately 15°C (59°F). Surface air temperatures are resting at 14°C (58°F).
Forecasts suggest rising temperatures later this week. A warming trend is expected over the next few days.
Divers who prefer moderate insulation typically choose 7mm wetsuit or semidry in similar environments. Consider warmer surface protection (like a boat coat) due to brisk winds. A thermal robe or jacket is recommended between dives. Many experienced divers adjust their exposure protection depending on the type of dive planned. Stronger winds may also make surface intervals feel cooler than usual. Surface intervals may feel noticeably cooler once you exit the water.
Due to technical issues with our weather providers, data hasn't been fetched for over 48 hours. 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 Inner Mulberry Harbour.
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.
Hyperbaric Medicine Unit, St Richard’s Hospital
24/7 ListedChichester, United Kingdom•Approx. 9 km straight-line
Hyperbaric Medicine Unit, St Richard’s Hospital
24/7 ListedFacility 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.
London Hyperbaric Medicine
Leytonstone, London, United Kingdom•Approx. 102 km straight-line
London Hyperbaric Medicine
Facility 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.
Midlands Diving Chamber
Rugby, United Kingdom•Approx. 181 km straight-line
Midlands Diving Chamber
Facility 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 Inner Mulberry Harbour
The historical structure of Inner Mulberry Harbour has become a vibrant artificial reef. Divers frequently encounter diverse marine life, including 17 types of anemones, nudibranchs, and scorpionfish. Common sightings around the pontoon also include various crab species, lobsters, wrasse, conger eels, and bream. The structural complexity offers numerous hiding spots, making it a rewarding site for macro life enthusiasts and those interested in observing temperate marine ecosystems.
Dive Sites Near Inner Mulberry Harbour
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Dive Centers Near Inner Mulberry Harbour
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Nearest Airports
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Search Flights on ExpediaFrequently Asked Questions
What is the maximum depth at Inner Mulberry Harbour?
Maximum depth at Inner Mulberry Harbour is consistently reported at approximately 5 meters. This shallow profile makes it suitable for newer divers or those looking for extended bottom times.
Is Inner Mulberry Harbour a shore dive?
Yes, Inner Mulberry Harbour is described as a shore dive. Divers can typically enter the water directly from the beach, making it easily accessible.
What kind of dive site is Inner Mulberry Harbour?
A unique blend of wreck and reef diving describes this site. It features a historical Mulberry Harbour component, now acting as an artificial reef and attracting diverse marine life.
What marine life can be seen at Inner Mulberry Harbour?
Divers often encounter a variety of marine life, including anemones, nudibranchs, scorpionfish, crabs, lobsters, conger eels, wrasse, and bream. The structure provides ample habitat for numerous species.
When is the best time to dive Inner Mulberry Harbour for good visibility?
For potentially better visibility, diving generally around 3 hours after high tide is advisable. Warmer months, from May to September, also tend to offer more favorable overall conditions, including higher air temperatures and less rain.
Is this site suitable for beginner divers?
Yes, with its shallow maximum depth of about 5 meters and shore entry, Inner Mulberry Harbour is considered suitable for beginner divers and those undergoing initial training, such as PADI Advanced Open Water Diver or Peak Performance Buoyancy courses.
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Inner Mulberry Harbour
Conditions are Excellent
Best Dive Window
07:00 - 14:00
Optimal conditions expected
Current conditions near Inner Mulberry Harbour show 14° air, 15° sea temperature, 0.4 m waves, and 14 km/h wind. Forecast data is refreshed regularly to ensure accuracy.