Reefwander
Green and red seaweed growing thickly over yellow-encrusted rock in green water — Glen Strathallan, Plymouth Sound & HMS Scylla

Plymouth Sound & HMS Scylla · United Kingdom · Wreck

Glen Strathallan

A luxury steam yacht scuttled near the Shag Stone for divers

Photo: HannahHawke · CC BY-SA 2.0

The Glen Strathallan is a luxury steam yacht that was towed out of Plymouth and scuttled near the Shag Stone in 1970 as a site for scuba diving. Her triple expansion steam engine is now on display in the Science Museum, London.

Also known as Glen Strathallen.

Where it is and how deep

Depth profile of Glen Strathallan: typical dive to 15 m (to 50 ft) 18 m · Open Water30 m · Advanced40 m · Recreational limit15 mtypical dive
Depths on a shared scale to 40 m (130 ft); dashed lines mark common certification limits.

50.3197° N, 4.1290° WApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.

The dive

Sunk on 27 April 1970 after being towed out of Plymouth, the yacht still lies on the sandy bottom just off the Shag Stone in approximately 15 m of water, a wreck put there for divers to visit.

The wreck

Vessel
Glen Strathallan
Type
Luxury steam yacht
Sunk
1970
Cause
Scuttled as a site for scuba diving
Lies
On a sandy bottom just off the Shag Stone in approximately 15 m of water

Marine life and season

The sources we used don't single out particular species here.

Month-by-month season rating for Glen Strathallan
JanFebMarAprMayJunJulAugSepOctNovDec
GoodGoodGoodGoodGoodGoodPrimePrimePrimeGoodGoodGood

Season follows Plymouth Sound & HMS Scylla: Diving runs all year when the wind allows; July to September brings the warmest water and the blue shark snorkel trips.

Photos from Glen Strathallan

  • HannahHawke · CC BY-SA 2.0

Dive videos

Tour of the Glen Strathallan · underwaterpics on YouTube

Sources

  1. Glen Strathallen — ScubaGo
  2. Shag Stone — ScubaGo
  3. Plymouth Sound — Wikipedia

Photo credits

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