Not the best wild swim on Dartmoor, but better than it sounds and it adds to the amenities, especially if you want still, cold water as a change from all those torrential plunge pools. Dartmoor doesn't really do Welsh Llynnau, but this is more like it than the moorland ponds.
The pool is surprisingly grand and scenic by quarry-pool standards, and is well-known as a good place for a dip on a hot day if you're a local rambler or climber.
This is a crowd-sourced map. Abilities vary, and conditions change. Always assess risks for yourself before getting in.