Glen Strathallen
Protected Area
Plymouth Sound Shores and Cliffs
Why dive here
With 176+ marine species recorded in the area - including blue sharks, dolphins, dwarf minke whales, humpback whales and ocean sunfish (mola mola) - Glen Strathallen offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.
The Glen Strathallen, sunk deliberately in 1970 as a training wreck, is just fantastic for newer divers. At a comfortable 16 metres, it’s shallow enough for longer bottom times and really allows you to soak in the details. We love dropping down and finding ourselves right on the bow, then slowly finning our way back along the deck. The ship's structure is still largely intact, which means you can poke around in cargo holds and peer into the bridge area. Expect to see quite a few conger eels tucked into the darker recesses, and the decks are covered in plumose anemones, creating these soft, feathery carpets. It’s a great site to practice your wreck diving skills without needing advanced certifications, and the relatively sheltered position often means good visibility, especially on a neap tide. Our favourite part is lingering around the stern, where the prop shaft housing offers some nice swim-through opportunities.
Typical Glen Strathallen 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.
Always perform a 3-minute safety stop at 5m before surfacing.
Nearest Dive Centres to Glen Strathallen
Dive shops near Glen Strathallen
Plymouth Diving Centre
Sound Diving Limited
Dive Looe
Scuba 2000
Viewpoint Diving Centre
Reviews for Glen Strathallen
Conditions
Ocean conditions, forecast and tides for Glen Strathallen
Glen Strathallen Ocean Conditions
Monthly averages for Glen Strathallen, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (50.44, -2.73) (3km away)
October Averages
Sea Temperature
17°C
62°F · Range: 15.1–17.5°C
Air Temperature
13°C
56°F
Wind Speed
8.14 m/s
15.8 knots
Atmospheric Pressure
1011 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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