This cache is part of a series of seven caches placed at or near wells in the Chilterns. At the top of the logs (of six of the seven caches), you will find a number - eg A=1, B=2 - which you can use to get the co-ordinates of a bonus cache.
You can park very close to all the wells, so most of the caches can be done as drive-bys. If you want to do them as a circuit, you may want to do them in roughly numerical order - starting at Binfield Heath, then Rotherfield Peppard, Gallowstree Common, Kidmore End, Ipsden, Stoke Row, Highmoor and then the bonus...
Some geology/history... Chalk is a very porous rock so a high percentage of rainwater just seeps through the cracks and fissures in the chalk down to the water table, rather than collecting in streams and rivers. In previous centuries, villages up in the Chilterns often suffered from severe water shortages and relied on wells for their water supply - many communities didn't get piped water until the mid-1900s. Maharajah's Well at Stoke Row is almost certainly the best known well in the area, but there are many more, both beside roads and also in people's back gardens. Most of these wells date from the mid to late 19th century.
Rotherfield Peppard - This well is right on the edge of Peppard, at the north corner of Old Copse. We came across it by chance while driving to Gallowstree Common. There is a plaque fixed on it which reads "THIS WELL WAS DUG BY PUBLIC SUBSCRIPTION FOR THE USE OF THE POOR FOR EVER 1888". Like most of the wells in this series, the ironwork came from Wilders of Wallingford.
You are looking for a small clip-lock container with room for a few small swaps. Please replace exactly as found.