A plastic test tube accessible from a wooden footbridge leading from the village of Clyst St George to the hamlet of Bushayes.
Clyst St George is the southernmost of six parishes along the route of the river Clyst whose source lies just outside Plymtree. The river runs 24 miles through Mid Devon and discharges in to the river Exe just below Topsham.
Roadside parking is available at the end of the lane, beyond this there is nowhere to turn around without venturing on to private land