A series of caches that follows The Hertfordshire Way leg 13 (from Bishop's Stortford to Hare Street), For further information about the Hertfordshire Way see link here
The caches should be easy to find, and are all on or near the footpath.
Please Note that between #13 and #14 there is a section of road.
You may require tweezers to access the log, as this is a narrow centrifuge tube.
Please replace as found to keep it hidden!