SI-SI
Protected Area
Hatter Barn
Why dive here
With 95+ marine species recorded in the area - including seals & sea lions, sea turtles and jellyfish lake - SI-SI offers some of North Sea Coast's richest wreck diving. Water ranges 3-19°C, warmest July, August, September.
The SI-SI is a small cutter, sitting in just 2 meters of water off the North Sea Coast. It’s a broken wreck, with pieces scattered across the sandy bottom. You’ll find flatfish, crabs, and juvenile cod sheltering among the debris. This site is best suited for snorkelers or very shallow divers looking for a short, easy exploration of a collapsed wreck.
Typical SI-SI 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.
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Conditions
Ocean conditions, forecast and tides for SI-SI
SI-SI Ocean Conditions
Monthly averages for SI-SI, 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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