Photos of Carn Marth
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About
Quarry swim on top of the hill.
Location
Getting there
Park near the engine house on Carn Marth Lane and take the verve path heading uphill
Accessibility
Steep hill 10 -20 min walk. Semi paved but rough path. Can be like walking up a river in winter! Easy entry to water with shallow slope. Beware wind chill as this is one of the highest locations in Cornwall.
What swimmers say
Activities
Landscape
Water sports
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Plan your swim
Before you go
- Cold water shock is real. Enter slowly and control your breathing.
- Lake water can be much colder below the surface (thermocline)
- Stay close to shore until you know the conditions
- Watch for boat traffic and stay visible with a tow float
- Check for blue-green algae warnings before swimming
Conditions change fast. Always check the latest data, read recent community reports, and swim within your ability.
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Frequently asked questions
Is this lake safe for swimming?
Check the Conditions tab for surface state and wind conditions. Review the Quality tab if this is a designated bathing water. Always read recent community reports for local advice.
How cold is the water?
Check the Temperature tab for the current estimate and 7-day trend. Lakes hold heat longer than rivers but can develop a thermocline. The water below the surface can be dramatically colder.
What should I bring?
A tow float for visibility (especially important where boats operate), warm layers for after, and consider a wetsuit in colder months. Check for designated swimming areas.