GRETHE
Protected Area
Saltholm og omliggende hav
Why dive here
With 66+ marine species recorded in the area - including jellyfish lake - GRETHE offers some of Bornholm's richest wreck diving. Water ranges 3-18°C, warmest July, August, September.
The Grethe is one of our favourite wreck dives on Bornholm, primarily because it's so accessible and still has that tangible sense of history. She’s a steamship, sunk in 1940, and sits upright in a shallow 10 metres of water. We love a wreck where you can really get a feel for the ship, and the Grethe delivers. You’ll see her bow first, often with a lazy cod or two peeking out from the darker recesses. The stern is largely intact, and you can swim through the holds – an easy penetration for even less experienced wreck divers. Sunlight filters through the top, illuminating the dense growth of green and brown algae that coats almost every surface. Flatfish often hug the sand around the wreck’s perimeter, almost perfectly camouflaged. We always find ourselves drawn to the intact mast, still standing proud, now a habitat for small crabs and anemones. It’s a dive that tells a story, and you can practically feel the Baltic’s cold embrace from decades past. It’s a great pick for newer wreck divers or those just looking for a relaxed exploration.
Typical GRETHE 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 14°C). Drysuit or thick wetsuit (7mm+) recommended.
Nearest Dive Centres to GRETHE
Dive shops near GRETHE
Aquatica
ScubaGear
Kingfish Dive & Travel
Dykkercentret
Ocean Divers ApS
H2O Diving Lund AB
Reviews for GRETHE
Conditions
Ocean conditions, forecast and tides for GRETHE
GRETHE Ocean Conditions
Monthly averages for GRETHE, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (54.94, 13.85) (7km away)
October Averages
Sea Temperature
14°C
57°F · Range: 11.7–16.3°C
Air Temperature
12°C
53°F
Wind Speed
8.16 m/s
15.9 knots
Atmospheric Pressure
1013.3 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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