GRETHE
Protected Area
Fladen
Why dive here
With 121+ marine species recorded in the area - including dolphins, dwarf minke whales, humpback whales, orcas and seals & sea lions - GRETHE offers some of West Coast (Gothenburg)'s richest wreck diving. Water ranges 3-18°C, warmest July, August, September.
Grethe is a genuinely special little wreck, sitting in just four metres of water near Vrångö. We’ve spent many an hour finning around this site, and it’s always a delight. She was a small motor vessel, sunk in November 1944 after hitting a mine, and now she rests mostly intact on a sandy bottom. What makes Grethe such a standout is her accessibility and the way she’s become a home for so much local marine life. You can easily spend an entire dive exploring her hold, peering into the small cabins, and navigating around the bow. The visibility here can be excellent, especially on a calm day, letting the light filter down through the green water and really illuminate the wreck. We often see large schools of juvenile pollack darting through the superstructure, and crabs scuttling amongst the frames. For photographers, it’s a dream – the shallow depth means plenty of ambient light, and the details of the wreck, from rusted machinery to portholes, make for fantastic subjects. It’s a perfect site for new wreck divers or anyone wanting a relaxed, immersive experience with a bit of history.
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 13°C). Drysuit or thick wetsuit (7mm+) recommended.
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 (57.57, 11.03) (3km away)
October Averages
Sea Temperature
13°C
56°F · Range: 10.6–15.8°C
Air Temperature
10°C
50°F
Wind Speed
6.56 m/s
12.8 knots
Atmospheric Pressure
1010.2 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
Plan & book
Ways to dive West Coast (Gothenburg), from day trips to liveaboards.
Day trips & courses
via GetYourGuideGuided dives, courses and snorkel trips with instant booking.
Find dive trips in West Coast (Gothenburg)Places to stay
via Booking.comHotels and dive resorts near West Coast (Gothenburg).
Search stays in West Coast (Gothenburg)Dive insurance
Most travel insurance excludes or limits scuba. Check what you need before you go.
Dive insurance explainedPartner links: we may earn a commission if you book, at no extra cost to you. How we make money
Where to Stay near GRETHE
Prices from Booking.com. We may earn a commission at no extra cost to you.
