SIDDNIA
Protected Area
Randers and Mariager Fjords and The Adjacent Sea
Why dive here
With 95+ marine species recorded in the area - including seals & sea lions, sea turtles and jellyfish lake - SIDDNIA offers some of North Sea Coast's richest wreck diving. Water ranges 3-19°C, warmest July, August, September.
The Siddnia, a motor vessel, sits upright in just 5 metres of water off the North Sea Coast, an accessible wreck dive for many. What we appreciate about her is how the structure has become a home. You’ll find flatfish tucked into the sand around the hull, and schools of juvenile pollack often mill about the superstructure. She's deemed a dangerous wreck, so penetration isn't recommended, but there's plenty to explore on the outside, peering into the open holds where crabs often scuttle away. It’s a site that suits divers looking for a relaxed dive, good for extended bottom times and getting comfortable navigating a wreck.
Typical SIDDNIA Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Cold water this month (avg 13°C). Drysuit or thick wetsuit (7mm+) recommended.
Reviews for SIDDNIA
Conditions
Ocean conditions, forecast and tides for SIDDNIA
SIDDNIA Ocean Conditions
Monthly averages for SIDDNIA, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (55.31, 9.86) (1km away)
October Averages
Sea Temperature
13°C
56°F · Range: 10.7–16.8°C
Air Temperature
11°C
52°F
Wind Speed
7.69 m/s
14.9 knots
Atmospheric Pressure
1010.5 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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