G 91
Protected Area
Hoy
Why dive here
With 140+ marine species recorded in the area - including blue whales, dolphins, dwarf minke whales, humpback whales and ocean sunfish (mola mola) - G 91 offers some of Scapa Flow, Orkney's richest wreck diving. Water ranges 8-14°C, warmest July, August, September.
The G 91, a German destroyer scuttled in 1919, lies in relatively shallow water at 13m in Scapa Flow. This makes her a great option for divers looking for a longer bottom time without the hefty deco. You’ll find her mostly intact, though obviously she’s been down a while. Her bow section is quite impressive, and we’ve spent many a dive poking around the various compartments and machinery, now home to plump wrasse and cheeky crabs. Visibility can vary, but on a good day, you get a real sense of her scale as she rests on the seabed. She’s a solid pick for anyone keen on wreck diving history without the extreme depths.
Typical G 91 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.
Always perform a 3-minute safety stop at 5m before surfacing.
Nearest Dive Centres to G 91
Dive shops near G 91
View all dive centres in Scapa Flow, OrkneyReviews for G 91
Conditions
Ocean conditions, forecast and tides for G 91
G 91 Ocean Conditions
Monthly averages for G 91, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (58.64, -3.16) (8km away)
October Averages
Sea Temperature
13°C
55°F · Range: 11.4–13.8°C
Air Temperature
10°C
50°F
Wind Speed
9.26 m/s
18.0 knots
Atmospheric Pressure
1005.3 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
Plan & book
Ways to dive Scapa Flow, Orkney, from day trips to liveaboards.
Day trips & courses
via GetYourGuideGuided dives, courses and snorkel trips with instant booking.
Find dive trips in Scapa Flow, OrkneyPlaces to stay
via Booking.comHotels and dive resorts near Scapa Flow, Orkney.
Search stays in Scapa Flow, OrkneyDive 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 G 91
Prices from Booking.com. We may earn a commission at no extra cost to you.