HMS ENDEAVOUR
Protected Area
Waulkmill
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) - HMS ENDEAVOUR offers some of Scapa Flow, Orkney's richest wreck diving. Water ranges 8-14°C, warmest July, August, September.
The HMS Endeavour sits upright in Scapa Flow, a trawler converted for boom defence work in the First World War. We love it because it’s surprisingly intact for its age, a real window into a different era of naval history. Dropping down, you’ll first hit the bow, often blanketed in plumose anemones, their white tentacles waving gently in the slight surge. The mast still stands proud, reaching towards the surface, a good reference point if the visibility is doing its usual Scapa Flow mood swings. Inside, the hold is accessible, and we’ve found it a great spot to practice light penetration, with just enough room to move around comfortably without feeling too confined. Look closely for the resident wrasse darting between the frames, and the occasional ling tucked into a shadowy corner. This wreck is a brilliant introduction to Scapa Flow’s deeper, darker secrets, perfect for divers comfortable with overhead environments but not ready for the full penetration challenge. We’d suggest hitting it on a slack tide for the easiest run, though the ambient light at 21 metres is usually pretty good on a bright day. It’s got that quiet, eerie charm that only a century-old wreck can offer.
Typical HMS ENDEAVOUR Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Depth of 21m - Advanced Open Water certification recommended.
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.
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Conditions
Ocean conditions, forecast and tides for HMS ENDEAVOUR
HMS ENDEAVOUR Ocean Conditions
Monthly averages for HMS ENDEAVOUR, 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
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