

Poseidon B.V. is a shore-entry reef site located in Grevelingen, Netherlands. The site features depths ranging from 5 to 15 metres, with an average depth of 10 metres. Divers should be aware that the site can reach depths of 42 metres, requiring careful monitoring of depth gauges and adherence to decompression schedules. Visibility typically fluctuates between 3 and 10 metres, and a moderate current is often present. Water temperatures vary seasonally from 7 to 20 degrees Celsius, necessitating appropriate thermal protection such as a drysuit during colder months. This site is suitable for those comfortable with variable visibility and current conditions.
51.86567, 4.53721
Water temperatures drop to around 7 degrees Celsius in winter, so a drysuit or a well-fitting thick wetsuit is strongly recommended for cold-season dives. Check current conditions locally before entering, as a moderate current can catch newer divers off guard.
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No known hazards
Expected in this region. No sightings logged here yet.
Depth
5-15m
Visibility
3-10m
Entry
Shore
Water Temp
7-20°C
Current
Moderate
While the site is manageable, the presence of a moderate current and variable visibility means it is best suited for divers comfortable with these conditions.
The site generally ranges from 5 to 15 metres, though it can reach depths of 42 metres.
Poseidon B.V. is a shore-entry site.
Water temperatures range from 7 degrees Celsius in winter to 20 degrees Celsius in August.
Monitor your depth gauge closely to avoid exceeding your limits and check local current conditions before entering the water.
A drysuit recommended is recommended for diving at Poseidon B.V. in Rotterdam. Water temperatures range from 7°C to 20°C.