
Diving atKreidsee, Hemmoor (Germany)
Imagine descending into the deep, clear waters of Kreidesee, Hemmoor, a former chalk quarry transformed into a captivating dive destination. An initial entry from shore quickly gives way to impressive walls and industrial remnants, creating an immediate sense of exploration. Divers here navigate through a landscape shaped by human activity, now reclaimed by freshwater life. Exploring this site presents a distinct experience, moving from shallow entry points to significant depths, revealing its character with each meter of descent.
Recent updates for Kreidsee, Hemmoor show an air temperature measuring 17°C. Overall water conditions reflect the typical seasonal state for Germany. Please exercise standard safety precautions before entering the water.
Dive Site Location & Key Facts
Everything you need to know about this dive site.
Dive Site Overview
The topography of Kreidesee, Hemmoor, offers a diverse underwater landscape, sprawling across approximately 1300 by 500 meters (4265 by 1640 ft) with a maximum depth of 60 m (196 ft). As a former quarry, its underwater environment is characterized by steep drop-offs, sheer walls, and various industrial structures that have become artificial reefs.
Key dive areas include 'The Forest', where submerged trees create an eerie, captivating environment, and 'The Street', which is suitable for beginners. Other notable zones like 'Rüttler' and 'The Other Side' present opportunities for deeper exploration and technical diving. Visibility can range significantly, from 5-10 meters (16-33 ft) during less favorable conditions, such as after heavy rain or with many divers, to an impressive 25 meters (82 ft), and sometimes even up to 40 meters (131 ft) in optimal weather.
On average, however, divers can expect visibility between 10-20 meters (33-66 ft), providing ample opportunity to appreciate the unique blend of natural and man-made features. Its substantial size ensures a variety of dive profiles, from shallower recreational dives to advanced technical explorations.
Kreidsee, Hemmoor
Conditions are Excellent
Best Dive Window
07:00 - 14:00
Optimal conditions expected
Current conditions near Kreidsee, Hemmoor show 17° air, --° sea temperature, N/A waves, and 13 km/h wind. Forecast data is refreshed regularly to ensure accuracy.
Best Time to Dive
Focusing on visibility, the best times to dive Kreidesee often fall between Tuesday and Thursday, when fewer divers typically contribute to sediment disturbance. Optimal weather conditions, free from strong winds or heavy rain, can significantly enhance underwater clarity, pushing visibility up to 40 meters (131 ft). Conversely, poorer weather or high diver traffic might reduce it to 5-10 meters (16-33 ft). For wet or semi-dry suit diving, April to November is generally preferred, aligning with average monthly air temperatures ranging from 9°C (48°F) in April to 18°C (64°F) in August. Rainfall is moderate, averaging 1.4-3.7 mm per month, which can temporarily affect surface run-off and visibility. Dry suit diving is a year-round option, as the lake rarely experiences significant ice formation. Even in colder months, when air temperatures drop to around 1-4°C (34-39°F), the dive score remains good, indicating viable conditions for appropriately equipped divers.
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
Exploring the diverse depth profile of Kreidesee, Hemmoor, offers experiences for every certification level. For beginners, specific entry points like 'de straat' provide ample shallow areas, allowing for comfortable skill practice at depths around 15-20 meters (49-66 ft). More experienced divers can explore beyond this, with the lake bottom often dropping steeply to its maximum depth. The absence of current makes for generally relaxed diving, though the water temperature can be relatively cold, particularly at greater depths, necessitating proper thermal protection. Technical divers will find suitable environments for deep diving, reaching up to 45 meters (148 ft) in designated areas, practicing advanced decompression procedures. Entrances 0, 1, 4a, and 4b cater well to introductory dives, while entrances 2 and 5 are suited for those seeking more challenging descents into the lake's deeper, dramatic features.
Dive Difficulty & Safety Guidelines
While generally accessible, diving Kreidesee requires adherence to specific regulations to ensure safety. A primary hazard to consider is water temperature, which remains relatively cold, especially at deeper levels, demanding appropriate thermal insulation. Divers must be aware that access is paid and requires registration before entry. Familiarity with the site's rules is crucial; always obey local diving regulations. It's mandatory to carry a second stage, emphasizing the importance of redundancy in equipment. Dive profiles are diverse, so divers should only explore areas suitable for their certification and experience level. While there are no reported strong currents, maintaining good buoyancy control is essential to prevent disturbing the bottom and preserve visibility, particularly in high-traffic areas. Planning dives according to personal limits and lake conditions is always recommended.
Recommended Equipment
- Dive Computer
This gear list is based on verified equipment signals for Kreidsee, Hemmoor, Germany. Always confirm final gear choices with your dive operator, guide, or liveaboard.
Recommended Dive Suit
Comfort levels can also depend on how active a diver is during the dive.
Because recent water temperature readings are not available for Kreidsee, Hemmoor, the guidance below is based mainly on current air conditions and seasonal expectations. Current surface air temperatures are roughly 17°C (62°F). Based on regional estimates and current weather, the likely required exposure protection is a 5mm or thicker wetsuit. Note that local currents and upwellings can alter this. A thermal robe or jacket is recommended between dives.
Conditions may fluctuate slightly depending on wind and weather patterns. A warming trend is expected over the next few days.
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 Kreidsee, Hemmoor.

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.
Zentrum für Hyperbarmedizin Hamburg
Hamburg, Germany•Approx. 18 km straight-line
Zentrum für Hyperbarmedizin Hamburg
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.
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.
Schiffahrtmedizinisches Institut der Marine Druckkammeranlage Hydra 2000
Kronshagen/ Kiel, Germany•Approx. 104 km straight-line
Schiffahrtmedizinisches Institut der Marine Druckkammeranlage Hydra 2000
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 Kreidsee, Hemmoor
Within Kreidesee's stark underwater landscape, its submerged structures and sheer walls provide unique habitats for freshwater species. Divers exploring these depths might encounter pike, often lurking around the remnants of industrial machinery or submerged trees. Rainbow trout and rudd are commonly sighted in various areas, sometimes darting through the clearer patches. Closer inspection of the bottom and crevices may reveal freshwater mussels and crayfish, camouflaged against the sandy or rocky substrate. Occasional sightings of sturgeon and eels add to the biological interest, demonstrating how aquatic life adapts to this unusual, man-made environment. Integration of artificial structures with natural lake features creates diverse niches for these inhabitants.
Dive Centers Near Kreidsee, Hemmoor
Working Hours
Today: 09:00 - 17:00
Nearest Airports
Nearest airports to help plan travel to this dive area.
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Search Flights on ExpediaFrequently Asked Questions
What is the maximum depth at Kreidesee, Hemmoor?
Kreidesee reaches a maximum depth of 60 meters (196 ft). However, many interesting dive profiles exist at shallower depths, suitable for various certification levels.
What can I expect regarding visibility?
Visibility varies significantly, from 5-10 meters (16-33 ft) in less favorable conditions to an impressive 40 meters (131 ft) on optimal days. The average is typically between 10-20 meters (33-66 ft).
Is Kreidesee suitable for beginner divers?
Yes, specific entry points like 'de straat' (entry 0, 1, 4a, 4b) are well-suited for beginners with shallower areas. More experienced divers can explore the deeper sections.
What kind of marine life might I encounter?
Divers commonly spot pike, rainbow trout, and rudd. Keep an eye out for freshwater mussels, crayfish, and occasional sturgeon or eels inhabiting the lake's structures.
Are there any currents in Kreidesee?
No, the lake typically experiences no discernible currents, which generally contributes to relaxed diving conditions. Its absence makes buoyancy control important to maintain visibility.
What specific equipment is recommended for diving here?
Due to the relatively cold water, especially at depth, a drysuit, hood, and gloves are highly recommended. A torch is also essential for exploring deeper areas and navigating potential lower visibility.
What is the best time of year to dive Kreidesee?
While dry suit diving is possible year-round, the period from April to November is ideal for wet or semi-dry suits. Weekdays, particularly Tuesday to Thursday, often offer the best visibility due to less diver traffic.
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Kreidsee, Hemmoor
Conditions are Excellent
Best Dive Window
07:00 - 14:00
Optimal conditions expected
Current conditions near Kreidsee, Hemmoor show 17° air, --° sea temperature, N/A waves, and 13 km/h wind. Forecast data is refreshed regularly to ensure accuracy.



