This is simply a beautiful spot in Devon on hte edge of Dartmoor, where the river Walkham flows into the Tavy, itself lower down a tributary of the Tamar which contains the naval dockyard at Devonport [Plymouth].
It can be reached from Buckland Monachorum above or by a delightful walk from the Magpie Bridge near Horrabridge on the A386 Plymouth-Tavistock road, via Grenofen Bridge.